Kinetic exchange Hamiltonian for orbitally degenerate ions

被引：4
|
作者：
Borras-Almenar, JJ
Clemente-Juan, JM
Coronado, E
Palii, AV
Tsukerblat, BS
机构：
[1] Univ Valencia, Dept Inorgan Chem, E-46100 Valencia, Spain
[2] Moldavian Acad Sci, Inst Chem, MD-2028 Kishinev, Moldova
来源：
PHYSICS LETTERS A | 1998年 / 238卷 / 2-3期
关键词：
D O I：
10.1016/S0375-9601(97)00695-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A new approach to the problem of the kinetic exchange for orbitally degenerate ions is developed. The highly anisotropic effective Hamiltonian is expressed in terms of unit irreducible tensor operators and spin operators, All parameters of the exchange Hamiltonian are expressed through relevant transfer integrals, crystal field and Racah parameters for the metal ions. As an example the edge-shared (D-2h) bioctahedral cluster is discussed and some comments on the considerations of Anderson, Goodenough and Kanamori and McConnell are given. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：164 / 168
页数：5
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