Quantum Hall ferromagnet in a parabolic quantum wire

被引：1

作者：

Tokura, Y ^{[1
]}

机构：

[1] NTT Corp, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.58.12597

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spin phase diagram of interacting electrons in a quantum wire under a high magnetic field is investigated by finite-system exact,diagonalization. Various phases emerge as a function of interaction strength and aspect ratio. Stable spin-polarized states correspond to two-dimensional fractional quantum Hall states of filling fractions 1/q, with q odd. Spin-singlet ground states for six electrons with filling fractions around 2/5-1/2 are inspected in detail, and a real-space singlet pairing state peculiar to wire systems is found for a larger aspect ratio. [S0163-1829(98)06640-5].

引用

页码：12597 / 12600

页数：4

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