Prototype symmetry of the ferroelastic superconductor Y-Ba-Cu-O

V. K. Wadhawan; A. M. Glazer

doi:10.1103/PhysRevB.39.9631

← Back to search

Prototype symmetry of the ferroelastic superconductor Y-Ba-Cu-O

V. K. Wadhawan, A. M. Glazer

DOI 10.1103/PhysRevB.39.9631 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

The question of the prototype symmetry of Y-Ba-Cu-O is reassessed in the light of recent electron-diffraction evidence for the existence of a homologous series of ordered phases in this material. It is argued that the apparaently incompatible data regarding the orientations of the various ferroelastic domain walls found in it can be explained by postulating that walls other than the commonly observed {110} walls must be occurring in regions of a specific oxygen stoichiometry only.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown