Landau levels in the presence of a screw dislocation

被引：135

作者：

Furtado, C ^{[1
]}

Moraes, F ^{[1
]}

机构：

[1] Univ Fed Pernambuco, Dept Fis, Lab Fis Teor & Computac, BR-50670901 Recife, PE, Brazil

来源：

EUROPHYSICS LETTERS | 1999年 / 45卷 / 03期

关键词：

D O I：

10.1209/epl/i1999-00159-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study electrons moving in a magnetic field in the presence of a screw dislocation. We focus on the influence of the screw dislocation on the energy spectrum of the electron (or hole) in the magnetic field, in a continuum theory of defects that is isomorphic to three-dimensional gravity. We find exact expressions for the eigenfunctions and eigenvalues of the energy and verify that the infinite degeneracy of the Landau levels is broken by the unusual boundary conditions imposed by the defect.

引用

页码：279 / 282

页数：4

共 14 条

[1] Anomalous defects and their quantized transverse conductivities [J].

Balachandran, AP ;

John, V ;

Momen, A ;

Moraes, F .

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 1998, 13 (05) :841-861

[2] DEFORMATION POTENTIALS AND MOBILITIES IN NON-POLAR CRYSTALS [J].

BARDEEN, J ;

SHOCKLEY, W .

PHYSICAL REVIEW, 1950, 80 (01) :72-80

[3] Single-particle quantum states in a crystal with topological defects [J].

Bausch, R ;

Schmitz, R ;

Turski, LA .

PHYSICAL REVIEW LETTERS, 1998, 80 (11) :2257-2260

[4]

BROWN E, 1964, PHYS REV, V133, P1038

[5] ON THE BINDING OF ELECTRONS AND HOLES TO DISCLINATIONS [J].

FURTADO, C ;

MORAES, F .

PHYSICS LETTERS A, 1994, 188 (4-6) :394-396

[6] LANDAU-LEVELS IN THE PRESENCE OF DISCLINATIONS [J].

FURTADO, C ;

DACUNHA, BGC ;

MORAES, F ;

DEMELLO, ERB ;

BEZZERRA, VB .

PHYSICS LETTERS A, 1994, 195 (01) :90-94

[7]

GALTSOV DV, 1993, PHYS REV D, V47, P9273

[8]

KANER EA, 1970, SOV PHYS JETP-USSR, V31, P966

[9] THEORY OF DEFECTS IN SOLIDS AND 3-DIMENSIONAL GRAVITY [J].

KATANAEV, MO ;

VOLOVICH, IV .

ANNALS OF PHYSICS, 1992, 216 (01) :1-28

[10]

Kleman M., 1983, POINTS LINES WALLS

← 1 2 →