Spin-Ordered States in Multilayer Massless Dirac Fermion Systems

被引：4

作者：

Kubo, Kenji ^{[1
]}

Morinari, Takao ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Human & Environm Studies, Kyoto 6068501, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2014年 / 83卷 / 03期

关键词：

ORGANIC CONDUCTOR; MAGNETIC-FIELDS; UNIAXIAL STRAIN; ALPHA-(BEDT-TTF)(2)I-3; GRAPHENE; PRESSURE; TRANSPORT; PHASE; SALT;

D O I：

10.7566/JPSJ.83.033702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the spin-ordered states in multilayer massless Dirac fermion systems under magnetic fields, in which the intralayer interaction is ferromagnetic owing to the exchange interaction, while the interlayer interaction is antiferromagnetic arising from the interlayer hopping and the on-site Coulomb repulsion. The possible spin-ordered states are examined within the mean field theory, and we apply it to alpha-(BEDT-TTF)(2)I-3, which is a multilayer massless Dirac fermion system under pressure. In the weak interlayer coupling regime the system exhibits a ferromagnetically spin-ordered state with the effective Zeeman g-factor less than two contrasting to that observed in the single-layer graphene.

引用

页数：4

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