Integer quantum Hall effect in a square lattice revisited

被引：8

作者：

Maiti, Santanu K. ^{[1
]}

Dey, Moumita ^{[2
]}

Karmakar, S. N. ^{[2
]}

机构：

[1] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel

[2] Saha Inst Nucl Phys, Theoret Condensed Matter Phys Div, Kolkata 700064, India

来源：

PHYSICS LETTERS A | 2012年 / 376卷 / 16期

关键词：

Quantum Hall effect; Landauer-Buttiker formalism; Landauer-Keldysh formalism; Lattice model; MASSLESS DIRAC FERMIONS; CONDUCTANCE; RESISTANCE;

D O I：

10.1016/j.physleta.2012.03.008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the phenomenon of integer quantum Hall effect in a square lattice, subjected to a perpendicular magnetic field, through Landauer-Buttiker formalism within the tight-binding framework. The oscillating nature of longitudinal resistance and near complete suppression of momentum relaxation processes are examined by studying the flow of charge current using Landauer-Keldysh prescription. Our analysis for the lattice model corroborates the finding obtained in the continuum model and provides a simple physical understanding. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1366 / 1370

页数：5

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