Induced Jahn-Teller transition in DyPO4 caused by a change in ground stateupon level crossing

Citation
Za. Kazei et Vv. Snegirev, Induced Jahn-Teller transition in DyPO4 caused by a change in ground stateupon level crossing, JETP LETTER, 73(2), 2001, pp. 90-93
Citations number
12
Categorie Soggetti
Physics
Journal title
JETP LETTERS
ISSN journal
00213640 → ACNP
Volume
73
Issue
2
Year of publication
2001
Pages
90 - 93
Database
ISI
SICI code
0021-3640(2001)73:2<90:IJTIDC>2.0.ZU;2-R
Abstract
The transition caused by a change in the ground state of a rare-earth ion u pon level crossing, an analogue of the induced Jahn-Teller transition in ra re-earth compounds, is observed. It is shown that a jumpwise change in the Jahn-Teller interactions of alpha and gamma symmetries, caused by a change in the corresponding quadrupole moments in DyPO4 upon level crossing, dimin ishes the critical field by similar to 20 kOe and leads to a sharper change in magnetization M and differential magnetic susceptibility dM/dH near the crossover point. (C) 2001 MAIK "Nauka/Interperiodica".