Simulation of crystal structures by empirical atom-atom potentials. 1. The tetragonal-to-orthorhombic distortion in lanthanum copper oxide (La2CuO4) and in the high-temperature superconductors La2-xMxCuO4 (M = barium, strontium)

1987 ◽  
Vol 109 (25) ◽  
pp. 7917-7918 ◽  
Author(s):  
Michel Evain ◽  
Myung Hwan Whangbo ◽  
Mark A. Beno ◽  
Urs Geiser ◽  
Jack M. Williams
Keyword(s):  
High Temperature ◽  
Copper Oxide ◽  
Crystal Structures ◽  
High Temperature Superconductors ◽  
Orthorhombic Distortion ◽  
Lanthanum Copper Oxide ◽  
Barium Strontium

scholarly journals Formation of superconducting yttrium barium copper oxide using sulphur-containing templates

RSC Advances ◽  
2014 ◽  
Vol 4 (51) ◽  
pp. 26824-26828 ◽  
Author(s):  
R. Boston ◽  
K. Awaya ◽  
T. Nakayama ◽  
W. Ogasawara ◽  
S. R. Hall
Keyword(s):  
High Temperature ◽  
Yttrium Barium Copper Oxide ◽  
Copper Oxide ◽  
High Temperature Superconductors ◽  
Barium Copper Oxide ◽  
P Protein ◽  
Acorn Barnacle ◽  
Barium Copper ◽  
Yttrium Barium

Protein from the acorn barnacle used to template high temperature superconductors.

scholarly journals Structure and superconductivity of hydrides at high pressures

2016 ◽  
Vol 4 (1) ◽  
pp. 121-135 ◽  
Author(s):  
Defang Duan ◽  
Yunxian Liu ◽  
Yanbin Ma ◽  
Ziji Shao ◽  
Bingbing Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Crystal Structures ◽  
Room Temperature ◽  
High Pressures ◽  
High Temperature Superconductors ◽  
Phonon Coupling ◽  
Metallic Hydrogen ◽  
Hydrogen Atoms ◽  
Strong Electron ◽  
Electron Phonon Coupling

Abstract Hydrogen atoms can provide high phonon frequencies and strong electron–phonon coupling in hydrogen-rich materials, which are believed to be potential high-temperature superconductors at lower pressure than metallic hydrogen. Especially, recently both of theoretical and experimental reports on sulfur hydrides under pressure exhibiting superconductivity at temperatures as high as 200 K have further stimulated an intense search for room-temperature superconductors in hydrides. This review focuses on crystal structures, stabilities, pressure-induced transformations, metallization, and superconductivity of hydrogen-rich materials at high pressures.

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