DocumentCode :
1912558
Title :
Coupled lattice and electronic effects in high-temperature superconductors
Author :
Bishop, Adrian
Author_Institution :
Los Alamos National Laboratory
fYear :
1994
fDate :
24-29 July 1994
Firstpage :
691
Lastpage :
691
Abstract :
Summary form only given. Accumulating data for oxide superconductors which become superconducting at high temperatures continues to point to the strong involvement of (particularly local and dynamic) structural distortion. At the same time, recent band structure calculations suggest that almost crossing electronic bands occur near the Fermi level. It is likely that these two characteristics are closely connected. Here, we : (i) Briefly review some of the evidence for the above characteristics ; (ii) Point out some similarities with perovskite and other martensitic materials, which also show distinctive percursor microstructure; (iii) Present a generalized BCS theory which includes band crossing and hybridization effects, and accounts for a multiphonon pairing mechanism; (iv) Analyze a local polaronic model for dynamic hole motion which can reconcile observations of double well Cu-O bond distributions and nonadiabatic optical spectroscopy features.
Keywords :
Biochemistry; High temperature superconductors; Lattices; Oxidation; Polymer films; Schottky diodes; Superconducting epitaxial layers; Superconducting films; Superconductivity; Switches;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Science and Technology of Synthetic Metals, 1994. ICSM '94. International Conference on
Conference_Location :
Seoul, Korea
Type :
conf
DOI :
10.1109/STSM.1994.836131
Filename :
836131
Link To Document :
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