THEORY OF HIGH TEMPERATURE SUPERCONDUCTIVITY IN LANTHANUM CUPRATES: INTERPLAY OF JAHN-TELLER AND MOTT-PHYSICS

2008 ◽  
Author(s):  
HIROSHI KAMIMURA
Keyword(s):  
High Temperature ◽  
High Temperature Superconductivity ◽  
Jahn Teller

scholarly journals The Role of Polarons in Cuprates Hi-Tc Superconductivity

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
M. I. Umo
Keyword(s):  
High Temperature ◽  
Critical Temperature ◽  
Kinetic Equation ◽  
High Temperature Superconductivity ◽  
Boltzmann Kinetic Equation ◽  
Apical Oxygen ◽  
Phonon Contribution ◽  
Extension Model ◽  
Jahn Teller

The phonon contribution to the phenomenon of high temperature superconductivity in the cuprates is argued as being masked as polarons generated by the polarization of the charge reservoir accompanying the Jahn-Teller tilting of the apical oxygen. We discuss the Mahan oscillator-spring extension model as an analogy to the charge reservoir-CuO plane c-axis polarons. Using the Boltzmann kinetic equation, we show that the polaron dissociates or collapses at a temperature corresponding to the critical temperature of the superconductor.

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