E. Pytte, H. Thomas
Physical Review
We present theory a of structural phase transitions in which the lowering of symmetry originates from a Jahn-Teller effect of the ionic constituents with electronic E-type doublets. We consider a model in which the three lowest vibronic states of the Jahn-Teller complexes are well separated from the higher excitations. The static and dynamic properties are studied in an S=1 pseudospin representation. © 1972 The American Physical Society.
E. Pytte, H. Thomas
Physical Review
K.A. Müller, W. Berlinger, et al.
Physical Review
J.G. Bednorz, T. Takashige, et al.
EPL
M. Buttiker, H. Thomas
Quantum Effect Physics, Electronics and Applications 1992