Metamagnetism in Jahn-Teller systems

被引：4

作者：

Nagaev, EL ^{[1
]}

机构：

[1] Russian Acad Sci, Inst High Pressure Phys, Troitsk 142092, Moscow Region, Russia

来源：

PHYSICS LETTERS A | 1998年 / 243卷 / 1-2期

关键词：

D O I：

10.1016/S0375-9601(98)00233-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Metamagnetism of the antiferromagnetic Pr and Nd manganites is explained by both the dynamic and static Jahn-Teller effect. The former leads to the appearance of the biquadratic terms in the effective Hamiltonian, due to which, on increase in the magnetic field, the magnetization exhibits a jump. The latter leads to the reconstruction of the d-orbital ordering in a magnetic field with a simultaneous jump in the magnetization. In this case a field-induced lattice reconstruction occurs. (C) 1998 Published by Elsevier Science B.V.

引用

页码：95 / 98

页数：4

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