scholarly journals INFLUENCE OF ELECTRON-ELECTRON CORRELATION ON THE JAHN-TELLER-TYPE STRUCTURAL PHASE TRANSITIONS

1991 ◽  
Vol 40 (9) ◽  
pp. 1474
Author(s):  
WU JIAN-BI
Keyword(s):  
Phase Transitions ◽  
Electron Correlation ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
Jahn Teller

Specific Features of Jahn-Teller Structure Phase Transitions in Nanocrystalline Materials

2009 ◽  
Vol 283-286 ◽  
pp. 53-58 ◽  
Author(s):  
Anatoly Yakovlevich Fishman ◽  
M.A. Ivanov ◽  
S.A. Petrova ◽  
Nickolai Tkachev ◽  
Vladimir Borisovich Vykhodets ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Nanocrystalline Materials ◽  
Phase State ◽  
Structural Phase ◽  
Structural Phase Transitions ◽  
First Order ◽  
Structure Phase ◽  
Jahn Teller ◽  
Multi Phase ◽  
Nanosized Crystals

Specific features of the structural phase transitions of the first order were investigated in nanosized crystals with Jahn-Teller ions. As an example the phase transitions of martensite type with changes in symmetry from a cubic to a tetragonal one have been considered. The Kanamori model was used to take into account the size of nanocrystallites and the distribution of cations over non-equivalent crystallographic sublattices in such systems. It was shown the temperature and the latent heat of the transition decrease significantly for the nanoscaled grains. A possibility of multi-phase state for nanocrystalline materials was considered.

Structural phase transitions in Jahn-Teller mixed crystals DyxTb1−x VO4

1990 ◽  
Vol 147 (2-3) ◽  
pp. 139-141 ◽  
Author(s):  
A.E. Dvornikova ◽  
M.D. Kaplan ◽  
Z.A. Kasey ◽  
B.V. Mill ◽  
V.I. Sokolov ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Structural Phase ◽  
Mixed Crystals ◽  
Structural Phase Transitions ◽  
Jahn Teller
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