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Title: Subperoxide model for {Tc} onset in cell volume expanded orthorhombics in Y{sub 1{minus}x}Gd{sub x}Ba{sub 2}Cu{sub 3}O{sub y}

Title compounds stabilize superconducting orthorhombic cell volume (V) expanded varieties. Conventional V contracted alternate chain orthorhombics are absent near y = 6.5. The arrival of superconductivity with y with slight expansion rather than pronounced V shrinkage obviates conventional charge transfer and supports self-doping on a subperoxide model for superconductivity.
Authors:
; ;
Publication Date:
OSTI Identifier:
20012910
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Low Temperature Physics; Journal Volume: 117; Journal Issue: 3-4; Conference: International Conference on Physics and Chemistry of Molecular and Oxide Superconductors, MOS'99, Stockholm (SE), 07/28/1999--08/02/1999; Other Information: PBD: Nov 1999
Research Org:
Univ. of California at San Diego, La Jolla, CA (US)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; HIGH-TC SUPERCONDUCTORS; MATHEMATICAL MODELS; TRANSITION TEMPERATURE; YTTRIUM OXIDES; GADOLINIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; SUPERCONDUCTIVITY; CRYSTAL STRUCTURE