HEAVY-FERMION SYSTEMS IN MAGNETIC-FIELDS - THE METAMAGNETIC TRANSITION

被引：7

作者：

FREERICKS, JK ^{[1
]}

FALICOV, LM ^{[1
]}

机构：

[1] LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.46.874

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Heavy fermions have a large number of low-lying excitations. Antiferromagnetic superexchange typically favors low-spin arrangements for the ground state. A magnetic field favors high-spin arrangements over low-spin arrangements. The transition from a low-spin ground state to a high-spin ground state, as a function of magnetic field, passes through a range where there is a peak in the many-body density of states. This range qualitatively describes the metamagnetic transition.

引用

页码：874 / 879

页数：6

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