Ferromagnetic transitions assisted by charge localization in f-band metals: Band-structure effects in cerium

被引：6

作者：

Jarlborg, T ^{[1
]}

机构：

[1] Univ Geneva, DPMC, CH-1211 Geneva, Switzerland

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.58.9599

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An increased f-band occupation in Ce, caused by increased temperature (T), is found to contribute negatively to the electronic specific heat. The same type of charge redistribution is caused by an imposed exchange splitting xi. This leads to a modification of the Stoner criterion to allow for magnetic transitions at low T. Sharp structures in the density of states (DOS) near the Fermi energy (E-F), such-as for Ce, are necessary for this effect. The effect can be enhanced in compounds due to sharper DOS features. [S0163-1829(98)04239-8].

引用

页码：9599 / 9602

页数：4

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