Dynamic Pseudo Jahn−Teller Effect and the Phase Transition Induced by Absorption of Molecules in Metal−Organic Nanotube Framework

2008 ◽  
Vol 112 (13) ◽  
pp. 5074-5077 ◽  
Author(s):  
Svyatoslav P. Gabuda ◽  
Svetlana G. Kozlova ◽  
Valeri A. Drebuschak ◽  
Danil N. Dybtsev ◽  
Vladimir P. Fedin
Keyword(s):  
Phase Transition ◽  
Teller Effect ◽  
Jahn Teller ◽  
Jahn Teller Effect ◽  
Metal Organic

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.

Jahn–Teller effect in LiMn2O4: influence on charge ordering, magnetoresistance and battery performance

2017 ◽  
Vol 19 (3) ◽  
pp. 2073-2077 ◽  
Author(s):  
K. Ragavendran ◽  
H. Xia ◽  
P. Mandal ◽  
A. K. Arof
Keyword(s):  
Phase Transition ◽  
Grain Size ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
Room Temperature ◽  
Charge Ordering ◽  
Teller Effect ◽  
Jahn Teller ◽  
Jahn Teller Effect

The phase transition near room temperature in LiMn2O4 was studied as a function of the oxygen non-stoichiometry and as a function of the grain size of the cathode material and directly compared with its electrochemical performance.

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