Novel quasi-two-dimensional Ru-doped tellurium-containing superconducting material and preparation method thereof

A superconducting material and a new type of technology, which are applied in the field of new quasi-two-dimensional Ru-doped tellurium-containing superconducting materials and their preparation, can solve the problems of low superconducting temperature, and achieve easy storage, uniform distribution, and low requirements for preparation conditions. Effect

Pending Publication Date: 2019-12-27
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although important progress has been made in the exploration and research of transition metal sulfide superconducting materials, many problems in this system are still to be solved, such as the superconducting temperature is generally low (the transition temperature of most transition metal layered sulfide superconductors is between 2K), the formation mechanism of charge density waves and the competitive relationship between superconductivity, etc.

Method used

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  • Novel quasi-two-dimensional Ru-doped tellurium-containing superconducting material and preparation method thereof
  • Novel quasi-two-dimensional Ru-doped tellurium-containing superconducting material and preparation method thereof
  • Novel quasi-two-dimensional Ru-doped tellurium-containing superconducting material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Accurately weigh 0.0199g Cu, 0.1179g Ir, 0.0016g Ru and 0.1686g Te and place them in a quartz tube. After fully grinding, evacuate to a vacuum of 1×10 under the vacuum line system -5 Torr sealed the tube with an acetylene flame; then placed the sealed quartz tube in a muffle furnace at 850°C for four days and calcined it for four days, then opened the quartz tube and fully ground the obtained powder to obtain CuIr 1.95 Ru 0.05 Te 4 The polycrystalline powder, and then use X-ray powder diffraction (PXRD) to determine the purity of the powder; finally, the physical properties of the polycrystalline material will be tested by the physical testing system (PPMS): mainly including electrical conductivity, magnetic properties, heat capacity etc., and finally determined that the target product has superconductivity.

Embodiment 2

[0029] Accurately weigh 0.0134g Cu, 0.0770g Ir, 0.0021g Ru and 0.1129g Te and place them in a quartz tube. After fully grinding, evacuate to a vacuum of 1×10 under the vacuum line system. -5 Torr sealed the tube with an acetylene flame; then placed the sealed quartz tube in a muffle furnace at 850°C for four days and calcined it for four days, then opened the quartz tube and fully ground the obtained powder to obtain CuIr 1.9 Ru 0.1 Te 4 The polycrystalline powder; then use X-ray powder diffraction (PXRD) to determine the purity of the respective component powder; finally, the physical properties of the polycrystalline material will be tested by the physical testing system (PPMS): mainly including electrical conductivity, magnetic properties , heat capacity, etc., and finally determine that the target product has superconductivity.

Embodiment 3

[0031] Accurately weigh 0.0135g Cu, 0.0736g Ir, 0.0043g Ru and 0.1140g Te and place them in a quartz tube. After fully grinding, pump them under the vacuum line system to a vacuum of 1×10 -5 Torr sealed the tube with an acetylene flame; then placed the sealed quartz tube in a muffle furnace at 850°C for four days and calcined it for four days, then opened the quartz tube and fully ground the obtained powder to obtain CuIr 1.8 Ru 0.2 Te 4 The polycrystalline powder; then use X-ray powder diffraction (PXRD) to determine the purity of the respective component powder; finally, the physical properties of the polycrystalline material will be tested by the physical testing system (PPMS): mainly including electrical conductivity, magnetic properties , heat capacity, etc., and finally determine that the target product has superconductivity.

[0032] Evaluation experiment:

[0033] CuIr prepared by the preparation method of the present invention 1.95 Ru 0.05 Te 4 The superconducti...

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Abstract

The invention relates to a series of superconducting materials with the chemical general formula of CuIr<2-x>RuxTe4 (0.03 < = x < = 0.3) and a preparation method thereof, and belongs to the technicalfield of functional material manufacturing. The preparation method is of a traditional high-temperature solid-phase process. The method comprises the following steps: according to a corresponding stoichiometric ratio, fully grinding elemental Cu, ir, Ru and Te, vaccumizing and sealing a quartz tube, then vaccumizing the quartz tube and sealing the quartz tube at high temperature, and finally sintering the sealed quartz tube filled with raw materials in a furnace at 850 DEG C for 4 days to obtain polycrystalline powder of the CuIr<2-x>RuxTe4 (0.03 < = x < = 0.3). Physical properties are testedthrough a comprehensive physical property testing system (PPMS) is used for determining the superconductivity of the target product by measuring the physical properties such as conductivity, magneticproperties and heat capacity of the target product. This is the first reported Ru doped tellurium-containing AB2X4 type (A, B = metal ion, and X = O, S, Se, Te) series superconductor. By synthesizingthe compound, the application range of the AB2X4 type compound can be widened, so that the AB2X4 type compound has a huge application prospect in the aspects of electric power, communication, high-tech equipment, military equipment and the like.

Description

technical field [0001] The invention belongs to the technical field of functional material manufacturing, and specifically relates to a series of chemical formula CuIr 2-x Ru x Te 4 (0.03≤x≤0.3) novel quasi-two-dimensional Ru-doped tellurium-containing superconducting material and its preparation method Background technique [0002] On April 8, 1911, the experimental group led by Kamerlingh Onnes, an experimental physicist at Leiden University in the Netherlands, accidentally discovered superconductivity when measuring the resistance of mercury wire samples in the liquid helium temperature zone. He was awarded the 1913 Nobel Prize in Physics for this discovery. The discovery of superconductivity is not only a milestone event in the field of physics, it has expanded human understanding of the physical properties of matter, and has promoted the development of industrial technology. After the discovery of the phenomenon of superconductivity, people have maintained a high de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/00
CPCC01B19/002C01P2006/40C01P2002/20C01P2002/72C01P2006/42C01P2006/32
Inventor 罗惠霞严冬何缘王舒石磊
Owner SUN YAT SEN UNIV
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