JAHN-TELLER ORDERING IN ISING MAGNETIC KE R(MOO4)(2), INDUCED BY EXTERNAL MAGNETIC-FIELD

Authors
KUTKO VI KOBETS MI PASHCHENKO BA KHATSKO EN
Citation
Vi. Kutko et al., JAHN-TELLER ORDERING IN ISING MAGNETIC KE R(MOO4)(2), INDUCED BY EXTERNAL MAGNETIC-FIELD, Fizika nizkih temperatur, 21(4), 1995, pp. 441-445
Citations number
13
Categorie Soggetti
Physics, Applied
Journal title
Fizika nizkih temperatur → ACNP
ISSN journal
01326414
Volume
21
Issue
4
Year of publication
1995
Pages
441 - 445
Database
ISI
SICI code
0132-6414(1995)21:4<441:JOIIMK>2.0.ZU;2-W
Abstract
The EPR spektra of the Ising magnetic KEr(MoO4)(2), of 18-30 GHz are s tudied in the range 1.8-4.2 K. The measurement of the angular dependen ces of the EPR spectrum has for the first time permitted detection and investigation of the first-order structural phase transition in the p aramagnet, which is induced by the external magnetic field. The critic al temperature and the critical field of the transition are estimated. A plausible microscopic model of the cooperative Jahn-Teller effect i s proposed to describe the observed phase transition.