SINGLET MAGNETISM IN HEAVY FERMIONS

被引：65

作者：

BARZYKIN, V

GORKOV, LP

机构：

[1] FLORIDA STATE UNIV, NATL HIGH MAGNET FIELD LAB, TALLAHASSEE, FL 32306 USA

[2] LD LANDAU THEORET PHYS INST, MOSCOW, RUSSIA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 21期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.74.4301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider singlet magnetism for the uranium ions in UPt3 and URu2Si2 assuming that time-reversal symmetry is broken for the coherent state of intermediate valence. The relative weight of the two involved configurations should be different for UPt3 and URu2Si2. If in UPt3 the configuration 5f1 on the U ion prevails in the coherent state below the magnetic transition, the magnetic moment will vanish for the particular choice of the ionic wave function. In the case of URu2Si2, the phase transition is nonmagnetic in the first approximation the magnetic moment arises from a small admixture of a half-integer spin configuration. © 1995 The American Physical Society.

引用

页码：4301 / 4304

页数：4

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