Open AccessEffect of the secondary crystal field-effect and the exchange interaction on magnetic and magneto-optic properties of PrF3
Author(s) -
Tian Xia,
Guoying Zhang,
Xuelong Zhang,
Xue Li
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.1741
Subject(s) - verdet constant , crystal (programming language) , condensed matter physics , magnetic field , field (mathematics) , faraday effect , ion , physics , exchange interaction , materials science , ferromagnetism , quantum mechanics , mathematics , computer science , pure mathematics , programming language
In the PrF3 crystal, the lowest crystal field state of Pr3+ ion is a single state, which has no contribution to the susceptibility and the Verdet constant of the crystal in first-order effect. The secondary crystal field-effect admixes the state with other states and makes the state have a great contribution to the magnetic properties of PrF3 crystal. In this paper, the effect of secondary crystal field-effect on the magnetic and magnetio-optic properties of PrF3 crystal is presented. Furthermore, the effective field of exchange interaction between the ions is investigated, which has the form is Hin=(1.9-0.02556 T)×10-5M. By means of the effective field, the inverses of the magnetic susceptibility and Verdet constant of PrF3 crystal as functions of temperature are calculated, and the results are in good agreement with the measured ones. The results show that the crystal field's second-order contribution and exchange interaction between ions shouldn't be ignored.