The self-consistent calculation of exchange enhanced odd integer quantized Hall plateaus within Thomas-Fermi-Dirac approximation

被引：8

作者：

Bilgec, G. ^{[1
]}

Toffoli, H. Uestuenel ^{[2
]}

Siddiki, A. ^{[3
]}

Sokmen, I. ^{[1
]}

机构：

[1] Dokuz Eylul Univ, Dept Phys, Fac Arts & Sci, TR-35160 Izmir, Turkey

[2] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey

[3] Mugla Univ, Dept Phys, Fac Arts & Sci, TR-48170 Kotekli, Mugla, Turkey

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 04期

关键词：

Lande g factor; Quantum Hall effect; Spin-splitting; DFT; REGIME;

D O I：

10.1016/j.physe.2009.11.052

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We study the emergent role of many-body effects on a two-dimensional electron gas (2DEG) within the Thomas-Fermi-Dirac-Poisson approximation, including both the exchange and correlation interactions in the presence of a strong perpendicular magnetic field. It is shown that the indirect interactions widen the odd-integer incompressible strips spatially, whereas the even-integer filling factors almost remain unaffected. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1058 / 1061

页数：4

共 14 条

[1] SELF-CONSISTENT SOLUTIONS OF THE THOMAS-FERMI-DIRAC EQUATION INCLUDING GRADIENT AND CORRELATION CORRECTIONS
SZICHMAN, H
PHYSICAL REVIEW B, 1991, 43 (07): : 6094 - 6098
[2] THE SIMPLIFIED THOMAS-FERMI-DIRAC EQUATION AND APPROXIMATION OF ITS CALCULATION FOR AN ATOMIC POTENTIAL
FIRSOV, OB
RADIATION EFFECTS AND DEFECTS IN SOLIDS, 1982, 61 (1-2): : 73 - 81
[3] SELF-INTERACTION CORRECTION FOR EXCHANGE AND MODIFICATION OF THE THOMAS-FERMI-DIRAC THEORY
CINAL, M
KUCHARCZYK, M
OLSZEWSKI, S
ACTA PHYSICA POLONICA A, 1989, 76 (04) : 561 - 577
[4] Self-consistent Thomas-Fermi calculation of potential and current distributions in a two-dimensional Hall bar geometry
Oh, JH
Gerhardts, RR
PHYSICAL REVIEW B, 1997, 56 (20): : 13519 - 13528
[5] Exchange energy of a hole gas and the Thomas-Fermi-Dirac approximation in p-type δ-doped quantum wells in Si and GaAs
Gaggero-Sager, LM
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 2002, 231 (01): : 243 - 255
[6] Self-consistent random phase approximation within the O(5) model and Fermi transitions
Krmpotic, F
de Passos, EJV
Delion, DS
Dukelsky, J
Schuck, P
NUCLEAR PHYSICS A, 1998, 637 (02) : 295 - 324
[7] Self-consistent calculation of the electron distribution near a quantum point contact in the integer quantum Hall effect
Siddiki, A.
Marquardt, F.
PHYSICAL REVIEW B, 2007, 75 (04):
[8] Weak-Field Hall Effect in Graphene Calculated within Self-Consistent Born Approximation
Fukuzawa, Toshiyuki
Koshino, Mikito
Ando, Tsuneya
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2009, 78 (09)
[9] Exchange and correlation in a semi-empirical tight binding calculation within the Thomas-Fermi approximation
Gaggero-Sager, LM
Vlaev, SJ
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1999, 215 (02): : 1049 - 1055
[10] Self-consistent Thomas-Fermi-Dirac theory, extended by Gell-Mann and Brueckner correlation, in terms of density n and its two reduced gradients del2n/n and deln/n
March, NH
Holas, A
Nagy, A
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 1998, 69 (02) : 145 - 149

← 1 2 →