Tomonaga-Luttinger liquid parameters of magnetic waveguides in graphene

被引：25

作者：

Haeusler, W. ^{[1
,2
]}

De Martino, A. ^{[1
,3
]}

Ghosh, T. K. ^{[1
,4
]}

Egger, R. ^{[1
]}

机构：

[1] Univ Dusseldorf, Inst Theoret Phys, D-40225 Dusseldorf, Germany

[2] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany

[3] Univ Cologne, Inst Theoret Phys, D-50937 Cologne, Germany

[4] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.78.165402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electronic waveguides in graphene formed by counterpropagating snake states in suitable inhomogeneous magnetic fields are shown to constitute a realization of a Tomonaga-Luttinger liquid. Due to the spatial separation of the right- and left-moving snake states, this non-Fermi liquid state induced by electron-electron interactions is essentially unaffected by disorder. We calculate the interaction parameters accounting for the absence of Galilei invariance in this system, and thereby demonstrate that non-Fermi liquid effects are significant and tunable in realistic geometries.

引用

页数：10

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