JAHN-TELLER CENTERS AND PSEUDOSPIN EFFECTS

Authors
MOSKVIN AS OVCHINNIKOV AS KOVALEV OS
Citation
As. Moskvin et al., JAHN-TELLER CENTERS AND PSEUDOSPIN EFFECTS, Physics of the solid state, 39(11), 1997, pp. 1742-1748
Citations number
20
Journal title
Physics of the solid state → ACNP
ISSN journal
10637834
Volume
39
Issue
11
Year of publication
1997
Pages
1742 - 1748
Database
ISI
SICI code
1063-7834(1997)39:11<1742:JCAPE>2.0.ZU;2-B
Abstract
The characteristics of the phenomenon of polar centers exhibiting Jahn -Teller behavior in copper oxides are investigated by the pseudospin a pproach, The emergence of relaxation pseudospin (dipole-quadrupole) mo des and pseudospin-phonon interaction produces a number of anomalies i n inelastic neutron scattering. The Jahn-Teller effect in polar center s brings about a change in the character of the tetra-ortho transition in the system La2-xMx-CuO4 as the concentration x is increased. The p ossibility of the onset of fluctuation domain nanostructures is sugges ted. (C) 1997 American Institute of Physics.