The Progress on Study of Isotope Effects in High TC Copper Oxide Superconductors

2007 ◽  
Vol 546-549 ◽  
pp. 1957-1960
Author(s):  
Yu Chen ◽  
Xin Min Huang ◽  
Jian Wu Wang ◽  
Xiao Shan Zeng
Keyword(s):  
High Temperature ◽  
Copper Oxide ◽  
Isotope Effect ◽  
High Temperature Superconductivity ◽  
Isotope Effects ◽  
Oxide Superconductors ◽  
High Tc ◽  
Mechanism Research ◽  
Dope Region ◽  
Copper Oxide Superconductors

Through the review of the correlation on the isotope effects research and superconductivity mechanism research as well as the progress on the study of the isotope effects in the high Tc copper oxide superconductors, we have found the fundamental factors that cause the different changes of the isotope effect value in different dope region in high Tc cupper oxide superconductors. We point the high-temperature superconductivity mechanism possible origin phonons mediation electrons.

THE CHEMICAL, NEGATIVE-U APPROACH TO HIGH TEMPERATURE SUPERCONDUCTIVITY

1989 ◽  
Vol 03 (05) ◽  
pp. 691-710 ◽  
Author(s):  
JOHN A. WILSON
Keyword(s):  
Copper Oxide ◽  
High Temperature Superconductivity ◽  
Spin Fluctuation ◽  
Mixed Valence ◽  
Neutron Spin ◽  
Oxide Superconductors ◽  
Anderson Transition ◽  
Photoemission Data ◽  
Copper Oxide Superconductors ◽  
High Level

Data published over the past year is examined in the light of the on-site negative U modelling proposed earlier. The model emphasizes how one must proceed beyond mixed valence to consider closely the charge transfer fluctuation conditions between the two subsystems. The situation prevailing is an intermediate U situation, being one in proximity to the Mott-Anderson transition. The high level of p-d mixing, in the copper oxide superconductors is seen to favour charge- at the expense of spin-fluctuation mediation. The proposed mixed-valently seeded, disproportionation fluctuation induced pairing requires no modification to pass from discussion of the copper oxide to the bismuth oxide superconductors. The author continues to express his opinion that it is the photoemission data which are primarily being misinterpreted, thereby encouraging misinterpretation of the neutron spin scattering and related experiments, and continuing to attract many theorists towards various spin modellings of HTSC.

Some Effects of Chemical Substitution and Applied Pressure on High Tc Copper Oxide Superconductors

1988 ◽  
pp. 29-40 ◽  
Author(s):  
M. B. Maple ◽  
Y. Dalichaouch ◽  
E. A. Early ◽  
B. W. Lee ◽  
J. T. Markert ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Applied Pressure ◽  
Oxide Superconductors ◽  
High Tc ◽  
Chemical Substitution ◽  
Copper Oxide Superconductors

scholarly journals Electronic phase diagram of high-temperature copper oxide superconductors

2011 ◽  
Vol 108 (23) ◽  
pp. 9346-9349 ◽  
Author(s):  
U. Chatterjee ◽  
D. Ai ◽  
J. Zhao ◽  
S. Rosenkranz ◽  
A. Kaminski ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Temperature ◽  
Copper Oxide ◽  
Oxide Superconductors ◽  
Electronic Phase ◽  
Copper Oxide Superconductors ◽  
Electronic Phase Diagram
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