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Polystyrene colloidal sphere and niobium film composite heterostructure superconducting material and preparation method

A polystyrene, heterostructure technology, applied in superconductor parts, nanotechnology for materials and surface science, nanotechnology, etc., can solve the problems of high cost, high equipment requirements, difficult application, etc. , The preparation process is simple, and the effect of improving the superconducting transition temperature

Inactive Publication Date: 2018-07-03
李志刚 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the current superconducting materials usually increase the superconducting transition temperature by high pressure, thereby improving their superconductivity, but the huge pressure requires high equipment, resulting in difficult application and high cost

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  • Polystyrene colloidal sphere and niobium film composite heterostructure superconducting material and preparation method
  • Polystyrene colloidal sphere and niobium film composite heterostructure superconducting material and preparation method
  • Polystyrene colloidal sphere and niobium film composite heterostructure superconducting material and preparation method

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] Such as Figure 1-6 As shown, the polystyrene colloidal sphere and niobium film composite heterostructure superconducting material of the present invention includes a substrate, a niobium film and a polystyrene hexagonal array film, the niobium film is located on the substrate, and the A polystyrene hexagonal array film covers the niobium film;

[0036] The polystyrene hexagonal array film includes a plurality of polystyrene colloidal microspheres, and each polystyrene colloidal microsphere is closely arranged as a hexagonal array in a single layer.

[0037] Preferably, the substrate is a high resistance silicon substrate.

[0038] Preferably, the thickness of the niobium film is 70nm-200nm.

[0039] Preferably, the polystyrene colloidal microspheres have a diameter of 100nm-2000nm.

[0040] The preparation method of polystyrene coll...

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Abstract

The invention discloses a composite heterostructure superconducting material of polystyrene colloidal spheres and niobium films, comprising a substrate, a niobium film and a polystyrene colloid hexagonal array film, the niobium film is located on the substrate, and the polystyrene hexagonal array film The film is covered on the niobium film; the polystyrene hexagonal array film includes a plurality of polystyrene colloidal microspheres, and each polystyrene colloidal microsphere is closely arranged in a single layer to form a hexagonal array. The invention also discloses a preparation method of the superconducting material. In the present invention, polystyrene colloidal microspheres and niobium superconducting thin film materials are constructed as heterostructure nanostructure materials, and the critical temperature of superconducting transition is regulated by changing the contact area of ​​colloidal spheres and niobium substrates, thereby improving the superconductivity of niobium thin films. The conduction transition temperature Tconset, the material preparation process is simple, and the required equipment is less, which greatly reduces the preparation cost of the superconducting material and is conducive to popularization and application.

Description

technical field [0001] The invention relates to a composite heterostructure superconducting material of polystyrene colloidal spheres and niobium films and a preparation method thereof. Background technique [0002] The superconducting state is a macroscopic quantum coherence phenomenon in which a large number of electrons are paired and condensed. It not only has important application value, but also involves a major basic scientific problem of the many-body effect of electrons in solid systems. Due to its unique zero-resistance current carrying and the quantum coherence effect of superconducting condensation, superconductivity has shown people its broad application prospects since its discovery. However, there are still many obstacles in the practical application of superconducting materials. For a superconducting material, its superconductivity depends on three critical parameters: critical temperature, critical magnetic field and critical current density. When the temper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L39/12B82Y30/00
CPCB82Y30/00H10N60/85
Inventor 李志刚冯尚申王天乐南浩善
Owner 李志刚
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