Design method, system and equipment of two-dimensional ferroelectric superconductor and medium

Abstract

The invention discloses a two-dimensional ferroelectric superconductor design method, system and device and a medium, and relates to the technical field of superconductor design, a two-dimensional layered superconductor is selected as a substrate, the original spatial symmetry of the two-dimensional superconductor is broken through a mode of introducing and inserting atoms between layers of the two-dimensional layered superconductor, and the two-dimensional ferroelectric superconductor is obtained. Therefore, the interlayer intercalation atomic structure after the atoms are inserted generates ferroelectricity; then, on the basis of a first principle, calculating adsorption energy of the interlayer intercalation atomic structure, energy of a non-centrosymmetric site, a phonon spectrum, thermodynamic energy, interlayer charge transfer and electrostatic potential difference and superconducting transition temperature so as to accurately judge energy stability, dynamic stability, thermodynamic stability, ferroelectricity and superconductivity of the interlayer intercalation atomic structure; the interlayer intercalation atomic structure with different properties meeting the requirements at the same time serves as the designed two-dimensional ferroelectric superconductor, so that on-demand construction of the two-dimensional ferroelectric superconductor is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of superconductor design, and in particular to a design method, system, equipment and medium for a two-dimensional ferroelectric superconductor. Background Art

[0002] Two-dimensional ferroelectrics and two-dimensional superconductors have important research significance in the fields of materials science and condensed matter physics. Two-dimensional ferroelectric materials have stable spontaneous polarization and switchable polarization properties under an external electric field. This property provides a new platform for studying the interaction of degrees of freedom such as charge, spin, and energy valleys. Compared with traditional three-dimensional ferroelectric materials, devices designed based on two-dimensional ferroelectric materials have smaller device size and higher integration, which helps to realize the miniaturization and multifunctionality of electronic components. Therefore, two-dimensional ferroelectric materials have broad application prospects in non-volatile memory, sensors, field-effect transistors and optical devices. Two-dimensional superconductors are the research It is an ideal candidate material for studying quantum phase transitions and superconductivity mechanisms. By studying the transition between the superconducting state and the normal state of two-dimensional superconductors, we can gain a deeper understanding of the microscopic mechanism of superconductors and the interaction between electrons. Two-dimensional superconductors can be used to design superconducting micro-nano devices. For example, they can be used in smaller portable magnetic resonance imagers and high-precision miniature magnetic field detectors to achieve single spin detection and control. Two-dimensional ferroelectric superconductors are a type of two-dimensional material that combines ferroelectricity and superconductivity. Therefore, this type of material has unique physical properties and application value. For example, the development of quantum devices with information storage functions can provide new solutions for quantum computing and information processing.

[0003] At present, there are two main methods for designing two-dimensional ferroelectric superconductors. One method is to stack a two-dimensional superconductor with a two-dimensional ferroelectric to form a heterojunction, and the other method is to screen a material system with slip ferroelectricity from known two-dimensional superconductors. For the first method, lattice mismatch must be considered when constructing the heterojunction. If the lattice mismatch rate is too large, it will lead to structural instability. However, the lattice mismatch rate is often difficult to adjust, making it difficult to construct a suitable heterojunction. For the second method, it has special requirements for the structural symmetry of the two-dimensional superconductor. Only when its double or multi-layer has non-centrosymmetry under a certain stacking method will it produce ferroelectricity, thus becoming a two-dimensional ferroelectric superconductor. However, this kind of non-centrosymmetric structure achieved by special stacking method is often difficult to construct, so it is also very difficult to obtain a two-dimensional ferroelectric superconductor by this method.

[0004] From the above description, it can be seen that method 1 is often difficult to adjust due to its lattice mismatch rate, which makes it difficult to construct a heterojunction structure. Method 2's multi-layer stacking method and non-centrosymmetric structure are difficult to construct, making it difficult to construct a two-dimensional ferroelectric superconductor. Therefore, due to the limitations of the two methods at this stage, it is difficult to construct a two-dimensional ferroelectric superconductor on demand using the current methods. Summary of the Invention

[0005] The embodiments of the present invention provide a design method, system, device and medium for a two-dimensional ferroelectric superconductor, which can solve the problem in the prior art that the current methods are difficult to construct a two-dimensional ferroelectric superconductor on demand.

[0006] An embodiment of the present invention provides a method for designing a two-dimensional ferroelectric superconductor, comprising the following steps: A two-dimensional layered superconductor is selected as a substrate, and multiple atoms from the periodic table are selected as guest atoms. Each guest atom is inserted into the interlayers of the two-dimensional layered superconductor to form multiple interlayer intercalated atomic structures. For each interlayer intercalated atomic structure, based on first principles, the adsorption energy of the interlayer intercalated atomic structure, the energy when the atoms are located at non-centrosymmetric sites, the phonon spectrum, the thermodynamic energy, the interlayer charge transfer and electrostatic potential difference, and the superconducting transition temperature are calculated; The designed two-dimensional ferroelectric superconductor is an interlayer intercalation atomic structure that meets the following conditions: adsorption energy is less than zero, the energy of the non-centrosymmetric site is the lowest at the corresponding interlayer intercalation atomic structure site, the band dispersion of the phonon spectrum has no imaginary frequency, the thermodynamic energy is in a preset fluctuation range, the interlayer charge transfer under different polarization states is opposite to the electrostatic potential difference, and the superconducting transition temperature is in a preset range.

[0007] Preferably, the calculation of the adsorption energy of the interlayer intercalation atomic structure and the determination of the energy stability of the interlayer intercalation atomic structure include: The adsorption energy of the interlayer intercalated atomic structure is calculated based on the first principles and is expressed as: ; in: represents the adsorption energy; It represents the total energy of the interlayer intercalated atomic structure after the intercalated atoms; represents the energy of a two-dimensional superconductor when no atoms are intercalated; represents the number of intercalated atoms; represents the chemical potential of the intercalated atoms; when It is proved that the process of inserting guest atoms into the interlayer of two-dimensional layered superconductors is a spontaneous exothermic process, and the energy of the interlayer intercalated atomic structure is stable.

[0008] Preferably, the step of calculating the energy of the interlayer intercalated atoms when they are located at non-centrosymmetric sites and determining the stability of the intercalated atomic positions includes: By moving the positions of guest atoms between the layers of the two-dimensional layered superconductor in the interlayer intercalation atomic structure, a structure in which guest atoms are located at different insertion sites is formed; The energies of these structures are calculated based on first principles to determine whether the structure in which the intercalated atoms are located at non-centrosymmetric sites has the lowest energy. When the structure in which the intercalated atoms are located at non-centrosymmetric sites has the lowest energy, it is determined that the intercalated atom positions in the structure are stable.

[0009] Preferably, the calculating of the phonon spectrum of the interlayer intercalated atomic structure and the judging of the dynamic stability of the interlayer intercalated atomic structure include: The phonon spectrum of the interlayer intercalated atomic structure is calculated using the Phonopy software package. When the phonon spectrum appears below zero in the energy band dispersion, it proves that the phonon spectrum has an imaginary frequency, which means that the interlayer intercalated atomic structure is unstable. When the phonon spectrum energy band dispersion is above zero, it means that the phonon spectrum has no imaginary frequency, and the interlayer intercalated atomic structure is dynamically stable.

[0010] Preferably, the step of calculating the thermodynamic energy of the interlayer intercalated atomic structure and determining the thermodynamic stability of the interlayer intercalated atomic structure comprises: By performing molecular dynamics simulation on the interlayer intercalated atomic structure, it was found that when the fluctuation range of the total energy of the interlayer intercalated atomic structure did not change within 5000fs, it was proved that the interlayer intercalated atomic structure did not deform, and the interlayer intercalated atomic structure was thermodynamically stable.

[0011] Preferably, the calculating of the interlayer charge transfer and electrostatic potential difference of the interlayer intercalated atomic structure and the judging of the ferroelectricity of the interlayer intercalated atomic structure comprises: Design two interlayer intercalation atomic structures with polarization structures: one is an interlayer intercalation atomic structure with guest atoms polarized upward between the layers of a two-dimensional layered superconductor, and the other is an interlayer intercalation atomic structure with guest atoms polarized downward between the layers of a two-dimensional layered superconductor; The interlayer charge transfer and electrostatic potential difference of the interlayer intercalated atomic structures with polarization upward and polarization downward are calculated respectively. When the interlayer charge transfer and electrostatic potential difference of the interlayer intercalated atomic structures with polarization upward and polarization downward are opposite, the interlayer intercalated atomic structure has ferroelectricity.

[0012] Preferably, the calculating the superconducting transition temperature of the interlayer intercalated atomic structure and determining the superconductivity of the interlayer intercalated atomic structure includes: The superconducting transition temperature of the interlayer intercalated atomic structure is calculated by the McMillan-Allen-Dynes formula, which is expressed as: ; in: represents the superconducting transition temperature; ; ; in: ωrepresents the phonon frequency; represents the logarithmic mean of the phonon frequency; represents the Eliashberg function; λ represents the electron-phonon coupling strength; μ * Represents the parameters for calculating Coulomb repulsion; When the superconducting transition temperature is within a preset range, the interlayer intercalated atomic structure has superconductivity.

[0013] An embodiment of the present invention further provides a design system for a two-dimensional ferroelectric superconductor, comprising: A structural design module is used to select a two-dimensional layered superconductor as a substrate, select multiple atoms from the periodic table as guest atoms, and insert each guest atom into the interlayers of the two-dimensional layered superconductor to form multiple interlayer intercalated atomic structures; The physical parameter determination module is used to calculate the adsorption energy of each interlayer intercalated atomic structure, the energy of atoms located at non-centrosymmetric sites, the phonon spectrum, the thermodynamic energy, the interlayer charge transfer and electrostatic potential difference, and the superconducting transition temperature based on first principles. The designed two-dimensional ferroelectric superconductor is an interlayer intercalation atomic structure that meets the following conditions: adsorption energy is less than zero, the energy of the non-centrosymmetric site is the lowest at the corresponding interlayer intercalation atomic structure site, the band dispersion of the phonon spectrum has no imaginary frequency, the thermodynamic energy is in a preset fluctuation range, the interlayer charge transfer under different polarization states is opposite to the electrostatic potential difference, and the superconducting transition temperature is in a preset range.

[0014] An embodiment of the present invention further provides an electronic device, including a memory and a processor; The memory is used to store computer programs; The processor is configured to implement the steps of the above-mentioned method for designing a two-dimensional ferroelectric superconductor when executing the computer program stored in the memory.

[0015] An embodiment of the present invention further provides a computer-readable storage medium for storing a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for designing a two-dimensional ferroelectric superconductor.

[0016] The embodiments of the present invention provide a design method, system, device, and medium for a two-dimensional ferroelectric superconductor. Compared with the prior art, the embodiments of the present invention have the following beneficial effects: Since two-dimensional superconductors originally have central symmetry and the centers of positive and negative charges coincide, they do not have ferroelectricity. In this invention, a two-dimensional layered superconductor is selected as the substrate. By inserting atoms between the layers of the two-dimensional layered superconductor, the centers of positive and negative charges no longer coincide, and the original spatial symmetry of the two-dimensional superconductor is broken by introducing intercalated atoms, so that the interlayer intercalated atom structure after inserting atoms generates ferroelectricity. Then, based on the first-principles, the adsorption energy, the energy of non-centrosymmetric sites, the phonon spectrum, the thermodynamic energy, the interlayer charge transfer and the electrostatic potential difference, as well as the superconducting transition temperature of the interlayer intercalated atom structure are calculated to accurately judge the energy stability of the atoms in the interlayer intercalated atom structure, the stability of the positions of intercalated atoms, the dynamic stability, the thermodynamic stability, ferroelectricity and superconductivity. The interlayer intercalated atom structure that simultaneously satisfies different properties is used as the designed two-dimensional ferroelectric superconductor to achieve the on-demand construction of two-dimensional ferroelectric superconductors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of the overall process of a method for designing a two-dimensional ferroelectric superconductor provided by an embodiment of the present invention; Figure 2 FIG. is a schematic diagram of selecting a certain atom from the periodic table of elements to intercalate into a two-dimensional layered superconductor in a method for designing a two-dimensional ferroelectric superconductor provided by an embodiment of the present invention; Figure 3 FIG. is a schematic diagram of setting the structures of intercalated atoms at different sites between the layers of a two-dimensional layered superconductor in a method for designing a two-dimensional ferroelectric superconductor provided by an embodiment of the present invention; Figure 4 FIG. is a schematic diagram of the phonon spectrum of the interlayer intercalated atom structure of a two-dimensional layered superconductor in a method for designing a two-dimensional ferroelectric superconductor provided by an embodiment of the present invention; (a) therein is the phonon spectrum energy band characteristic without imaginary frequency; (b) therein is the phonon spectrum energy band characteristic with imaginary frequency; Figure 5 FIG. is a schematic diagram of the change curve of the total energy of the structure with the simulation time in the molecular dynamics simulation at 300 K of the interlayer intercalated atom structure of a two-dimensional layered superconductor in a method for designing a two-dimensional ferroelectric superconductor provided by an embodiment of the present invention; Figure 6 FIG. is a schematic diagram of the transfer of electrons from intercalated atoms to the upper and lower layers in the interlayer intercalated atom structure of a two-dimensional layered superconductor in a method for designing a two-dimensional ferroelectric superconductor provided by an embodiment of the present invention, and the electrostatic potential of ferroelectric polarization; (a) therein is a schematic diagram of the transfer of electrons from intercalated atoms to the upper and lower layers in the interlayer intercalated atom structure of a two-dimensional layered superconductor. When the intercalated atom transfers x electrons to the upper layer and y electrons to the lower layer, and x < y, then this structure has an upward electric dipole moment and thus has an upward ferroelectric polarization intensity; conversely, it has a downward electric dipole moment and the ferroelectric polarization direction is downward; (b) therein is the structure with upward ferroelectric polarization (Pup ) with ferroelectric polarization downward structure (P dw )'s electrostatic potential. DETAILED DESCRIPTION

[0018] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] See also Figure 1 The present invention provides a method for designing a two-dimensional ferroelectric superconductor. Specifically, the method inserts atoms between the layers of a two-dimensional layered superconductor, breaking the original spatial symmetry of the two-dimensional superconductor by introducing intercalated atoms, thereby imparting ferroelectricity to the superconductor. Ferroelectricity is then introduced into the two-dimensional superconductor, making it a two-dimensional ferroelectric superconductor. The method includes the following steps:

[0020] Step 1: Select a two-dimensional layered superconductor as the research object, and then select an element from the periodic table as the object to insert into the interlayer of the two-dimensional layered superconductor, so as to obtain the interlayer intercalation atomic structure of the two-dimensional superconductor, such as Figure 2 shown.

[0021] Step 2: Structural stability analysis, based on the first principle calculation method, compares and analyzes the adsorption energy of the structure constructed in step 1. The adsorption energy formula is expressed as: .

[0022] in: represents the total energy of the system after the intercalation of atoms; represents the energy of a two-dimensional superconductor when no atoms are intercalated; represents the number of intercalated atoms; represents the chemical potential of the intercalated atoms.

[0023] exist This shows that the atomic intercalation process is an exothermic spontaneous process and the intercalation system is energy-stable; therefore, by calculating the adsorption energy, it is possible to determine which atoms inserted into the two-dimensional superconductor are energy-stable.

[0024] Step 3: After determining which atoms can be inserted to obtain an energy-stable intercalation structure, the intercalation atoms are moved between the two-dimensional superconductor layers to further construct structures with different insertion sites, such as Figure 3As shown; then the energy of these structures is obtained based on the first-principles calculation method to determine whether the structure with the intercalated atoms located at non-centrosymmetric sites has the lowest energy.

[0025] Step 4: Select the structural systems with the lowest energy when the intercalated atoms are located at non-centrosymmetric sites from step 3, and then calculate the phonon spectra of these structures using the Phonopy software package. The calculated phonon spectra are used to determine whether these structures are dynamically stable, such as Figure 4 As shown in the figure, when the phonon spectrum is below zero in the energy band dispersion, it means that the phonon spectrum has imaginary frequency and the structure is unstable. When the phonon spectrum energy band dispersion is above zero, it means that the phonon spectrum has no imaginary frequency and the structure is dynamically stable.

[0026] Step 5: Select the structure without imaginary frequency in the phonon spectrum in step 4 and continue molecular dynamics analysis. The molecular dynamics analysis can be used to determine whether the structure is thermodynamically stable. Figure 5 As shown in Figure 3, if the fluctuation range of the total energy of the structure does not change much within 5000 fs and the final structure does not deform much, it means that the structure is thermodynamically stable.

[0027] Step 6: After confirming that the structure is stable, conduct ferroelectric analysis by calculating the interlayer charge transfer and electrostatic potential difference; Figure 6 As shown, when the polarization is upward (P up ) and polarization downward (P dw ) When the two structures have opposite interlayer charge transfer and electrostatic potential difference, it means that the two structures have ferroelectric polarization strengths in opposite directions; thus proving that the structure has ferroelectricity.

[0028] Step 7: Verify whether the designed structure is superconducting; estimate its superconducting transition temperature according to the McMillan-Allen-Dynes formula T c , expressed as: .

[0029] .

[0030] .

[0031] in: ω represents the phonon frequency; represents the logarithmic mean of the phonon frequency; represents the Eliashberg function; λ represents the electron-phonon coupling strength; μ * Represents the parameters for calculating Coulomb repulsion.

[0032] Among them, the electron-phonon coupling strength (λ) can be calculated by the EPW program, μ * It is an empirical parameter and generally takes a value of 0.1~0.15.

[0033] The present invention obtains a new two-dimensional ferroelectric superconductor by designing an atomic intercalation structure for a two-dimensional layered superconductor. Due to the wide range of selectable intercalation atoms, the present invention is more universal and easier to implement than the existing methods of constructing ferroelectric heterojunctions and utilizing slip ferroelectrics.

[0034] The present invention uses first-principles calculations to predict two-dimensional ferroelectric superconductors, realizes on-demand design, shortens the research and development cycle, provides theoretical guidance for actual experiments, and saves experimental time and costs.

[0035] Compared with the existing technology, the present invention studies the adsorption energy, phonon spectrum, interlayer charge transfer, electrostatic potential, superconducting transition temperature, etc. of the intercalated atomic structure of a two-dimensional layered superconductor through the first-principles calculation method. These properties realize the key physical parameters of the design of two-dimensional ferroelectric superconductors. These parameters are determined by first-principles calculation and analysis, with the characteristics of high calculation result accuracy, simple operation, easy implementation and short R&D cycle.

[0036] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A method for designing a two-dimensional ferroelectric superconductor, characterized in that: The following steps are involved: A two-dimensional layered superconductor is selected as a substrate, multiple seed atoms are selected from the periodic table as guest atoms, and each guest atom is inserted into the interlayers of the two-dimensional layered superconductor to form multiple interlayer intercalated atomic structures; For each interlayer intercalated atomic structure, based on first principles, the adsorption energy of the interlayer intercalated atomic structure, the energy when the atoms are located at non-centrosymmetric sites, the phonon spectrum, the thermodynamic energy, the interlayer charge transfer and electrostatic potential difference, and the superconducting transition temperature are calculated; The designed two-dimensional ferroelectric superconductor is an interlayer intercalation atomic structure that meets the following conditions: adsorption energy is less than zero, the energy of the non-centrosymmetric site is the lowest at the corresponding interlayer intercalation atomic structure site, the band dispersion of the phonon spectrum has no imaginary frequency, the thermodynamic energy is in a preset fluctuation range, the interlayer charge transfer under different polarization states is opposite to the electrostatic potential difference, and the superconducting transition temperature is in a preset range.

2. The design method of a two-dimensional ferroelectric superconductor according to claim 1, characterized in that: The calculation of the adsorption energy of the interlayer intercalation atomic structure and the determination of the energy stability of the interlayer intercalation atomic structure include: The adsorption energy of the interlayer intercalated atomic structure is calculated based on the first principles and is expressed as: ； in: represents the adsorption energy; It represents the total energy of the interlayer intercalated atomic structure after the intercalated atoms; represents the energy of a two-dimensional superconductor when no atoms are intercalated; represents the number of intercalated atoms; represents the chemical potential of the intercalated atoms; when It is proved that the process of inserting guest atoms into the interlayer of two-dimensional layered superconductors is a spontaneous exothermic process, and the energy of the interlayer intercalated atomic structure is stable.

3. The design method of a two-dimensional ferroelectric superconductor according to claim 1, characterized in that: The calculation of the energy of the interlayer intercalated atoms when they are located at non-centrosymmetric sites and the determination of the stability of the intercalated atomic positions include: By moving the positions of guest atoms between the layers of the two-dimensional layered superconductor in the interlayer intercalation atomic structure, a structure in which guest atoms are located at different insertion sites is formed; The energies of these structures are calculated based on first principles to determine whether the structure in which the intercalated atoms are located at non-centrosymmetric sites has the lowest energy. When the structure in which the intercalated atoms are located at non-centrosymmetric sites has the lowest energy, it is determined that the intercalated atom positions in the structure are stable.

4. The design method of a two-dimensional ferroelectric superconductor according to claim 1, characterized in that: The calculating of the phonon spectrum of the interlayer intercalated atomic structure and judging the dynamic stability of the interlayer intercalated atomic structure includes: The phonon spectrum of the interlayer intercalated atomic structure is calculated using the Phonopy software package. When the phonon spectrum appears below zero in the energy band dispersion, it proves that the phonon spectrum has an imaginary frequency, which means that the interlayer intercalated atomic structure is unstable. When the phonon spectrum energy band dispersion is above zero, it means that the phonon spectrum has no imaginary frequency, and the interlayer intercalated atomic structure is dynamically stable.

5. The design method of a two-dimensional ferroelectric superconductor according to claim 1, characterized in that: The step of calculating the thermodynamic energy of the interlayer intercalated atomic structure and determining the thermodynamic stability of the interlayer intercalated atomic structure comprises: By performing molecular dynamics simulation on the interlayer intercalated atomic structure, it was found that when the fluctuation range of the total energy of the interlayer intercalated atomic structure did not change within 5000fs, it was proved that the interlayer intercalated atomic structure did not deform, and the interlayer intercalated atomic structure was thermodynamically stable.

6. The design method of a two-dimensional ferroelectric superconductor according to claim 1, characterized in that: The calculating of the interlayer charge transfer and electrostatic potential difference of the interlayer intercalated atomic structure and the judging of the ferroelectricity of the interlayer intercalated atomic structure include: Design two interlayer intercalation atomic structures with polarization structures: one is an interlayer intercalation atomic structure with guest atoms polarized upward between the layers of a two-dimensional layered superconductor, and the other is an interlayer intercalation atomic structure with guest atoms polarized downward between the layers of a two-dimensional layered superconductor; The interlayer charge transfer and electrostatic potential difference of the interlayer intercalated atomic structures with polarization upward and polarization downward are calculated respectively. When the interlayer charge transfer and electrostatic potential difference of the interlayer intercalated atomic structures with polarization upward and polarization downward are opposite, the interlayer intercalated atomic structure has ferroelectricity.

7. The design method of a two-dimensional ferroelectric superconductor according to claim 1, characterized in that: The calculating the superconducting transition temperature of the interlayer intercalated atomic structure and judging the superconductivity of the interlayer intercalated atomic structure comprises: The superconducting transition temperature of the interlayer intercalated atomic structure is calculated by the McMillan-Allen-Dynes formula, which is expressed as: ； in: represents the superconducting transition temperature; ； ； in: ω represents the phonon frequency; represents the logarithmic mean of the phonon frequency; represents the Eliashberg function; λ represents the electron-phonon coupling strength; μ * Represents the parameters for calculating Coulomb repulsion; When the superconducting transition temperature is within a preset range, the interlayer intercalated atomic structure has superconductivity.

8. A design system for a two-dimensional ferroelectric superconductor, characterized in that: include: A structural design module is used to select a two-dimensional layered superconductor as a substrate, select multiple atoms from the periodic table as guest atoms, and insert each guest atom into the interlayers of the two-dimensional layered superconductor to form multiple interlayer intercalated atomic structures; The physical parameter determination module is used to calculate the adsorption energy of each interlayer intercalated atomic structure, the energy of atoms located at non-centrosymmetric sites, the phonon spectrum, the thermodynamic energy, the interlayer charge transfer and electrostatic potential difference, and the superconducting transition temperature based on first principles. The designed two-dimensional ferroelectric superconductor is an interlayer intercalation atomic structure that meets the following conditions: adsorption energy is less than zero, the energy of the non-centrosymmetric site is the lowest at the corresponding interlayer intercalation atomic structure site, the band dispersion of the phonon spectrum has no imaginary frequency, the thermodynamic energy is in a preset fluctuation range, the interlayer charge transfer under different polarization states is opposite to the electrostatic potential difference, and the superconducting transition temperature is in a preset range.

9. An electronic device, characterized in that: include: memory and processor; The memory is used to store computer programs; The processor is configured to implement the steps of the method for designing a two-dimensional ferroelectric superconductor according to any one of claims 1 to 7 when executing the computer program stored in the memory.

10. A computer-readable storage medium, characterized in that Used to store a computer program, which, when executed by a processor, implements the steps of the design method of a two-dimensional ferroelectric superconductor as claimed in any one of claims 1 to 7.

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