Bond Asymmetry and High-TcSuperconductivity

14 December 1987

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 59 (24), 2780-2783
https://doi.org/10.1103/physrevlett.59.2780

Abstract

We propose a simple mechanism, anchored in weak-coupling BCS theory, which ties together the following facts: high

T_{c}

; quasi two dimensionality; orthorhombic distortion and/or disordered lines of oxygen; proximity to a metal-insulator transition; and anomalously small isotope effects.

Keywords

This publication has 19 references indexed in Scilit:

Structural and superconducting properties of orthorhombic and tetragonal $Y {Ba}_{2} {Cu}_{3} O_{7 - x}$ : The effect of oxygen stoichiometry and ordering on superconductivity
Physical Review B, 1987
High-temperature order-disorder phase transition in the superconductor $Y_{1} {Ba}_{2} {Cu}_{3} O_{6 + δ}$ observed by electrical resistivity measurements
Physical Review B, 1987
Observation of an oxygen isotope effect in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$
Physical Review Letters, 1987
Oxygen ordering and superconductivity in La(Ba2−xLax)Cu3O7+δ
Nature, 1987
Electronic structure of the high Tc superconductor Ba2YCu3O6.9
Solid State Communications, 1987
Structural phase transition in YBa2Cu3O7−δ: the role of dimensionality for high temperature superconductivity
Solid State Communications, 1987
Electronic structure and properties of YBa2Cu3O7-δ, a low dimensional, low density of states superconductor
Physics Letters A, 1987
Temperature and composition dependence of the tetragonal-orthorhombic distortion in ${La}_{2 - x}$ ${Sr}_{x}$ ${CuO}_{4 - δ}$
Physical Review B, 1987
Electronic band properties and superconductivity in ${La}_{2 - y}$ $X_{y}$ ${CuO}_{4}$
Physical Review Letters, 1987
Electronically driven instabilities and superconductivity in the layered ${La}_{2 - x}$ ${Ba}_{x}$ ${CuO}_{4}$ perovskites
Physical Review Letters, 1987

Cited by 14 articles