Gutzwiller method for heavy-fermion systems under a magnetic field

被引：5

作者：

Kubo, Katsunori ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

来源：

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 10, NO 3 | 2013年 / 10卷 / 03期

关键词：

metamagnetism; small and large Fermi-surfaces; ferromagnetism; Lifshitz transition; ANDERSON LATTICE; CERU2SI2; TRANSITION; ELECTRONS;

D O I：

10.1002/pssc.201200762

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the periodic Anderson model under a magnetic field by the Gutzwiller method. We find that the Fermi surface changes from the large Fermi-surface in the paramagnetic state to the small Fermi-surface continuously by a magnetic field. Between these two states, we find a half-metallic state, where the Fermi surface for the majority spin disappears. We also investigate the magnetic field dependence of the effective mass. (C) 201 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：544 / 548

页数：5

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