Cooperative Pseudo Jahn-Teller Effect as Microscopic Mechanism of (OMT)-(LTT) Structural Phase Transition in La2−xBaxCuO4Superconductors

1992 ◽  
Vol 291 ◽  
Author(s):  
Michael D. Kaplan
Keyword(s):  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Electronic States ◽  
Teller Effect ◽  
Excited Electronic States ◽  
Microscopic Mechanism ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
Local Distortions

ABSTRACTA microscopic mechanism for the structural phase transition from the orthorhombic mediate temperature (OMT) phase into the low temperature tetragonal (LTT) one is suggested on the basis of the cooperative pseudo Jahn-Teller effect. The local distortions mixing the ground and the first excited electronic states are ordered antiferrodistortively and are connected in part, with the oxygen octahedra rotations around the [100] axis. The results are in agreement, with the neutron scattering experiments data.

Magnetic and FMR Investigation of the Structural Phase Transition in Cu-Ferrite with Cooperative Jahn-Teller Effect

1982 ◽  
Vol 73 (2) ◽  
pp. K243-K247 ◽  
Author(s):  
I. Onyszkiewicz ◽  
N. T. Malafaev ◽  
A. A. Murakhovskii ◽  
J. Pietrzak
Keyword(s):  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Teller Effect ◽  
Jahn Teller ◽  
Jahn Teller Effect

scholarly journals The Static Jahn-Teller Effect in the Excited Electronic States of Benzene, Triphenylene, and Coronene.

1996 ◽  
pp. 231-240
Author(s):  
Mitsunobu NAKAYAMA ◽  
Hiroyuki SHIMIZU ◽  
Sadachika AKIYAMA ◽  
Yoshiyuki KOMURA ◽  
Keizo SUZUKI ◽  
...  
Keyword(s):  
Electronic States ◽  
Teller Effect ◽  
Excited Electronic States ◽  
Jahn Teller ◽  
Jahn Teller Effect
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