Hall potential distribution in the quantum Hall regime in the vicinity of a potential probe contact

被引：76

作者：

Ahlswede, E ^{[1
]}

Weis, J ^{[1
]}

von Klitzing, K ^{[1
]}

Eberl, K ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2002年 / 12卷 / 1-4期

关键词：

quantum Hall effect; scanning probe microscopy;

D O I：

10.1016/S1386-9477(01)00267-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Scanning force microscope measurements of the Hall potential distribution of a two-dimensional electron system (2DES) in the quantum Hall regime reveal the presence of a partial depletion along the border between the 2DES and the good ohmic metal contact: incompressible strips are formed in high magnetic fields along this border, decoupling the bulk region of the 2DES from the contact. This finding clarifies the role of potential probe contacts in Hall bar devices and might affect the interpretation of conductance measurements on Corbino devices. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：165 / 168

页数：4

共 50 条

[21] DELOCALIZATION IN THE QUANTUM HALL REGIME
PRUISKEN, AMM
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1989, 184 (2-4): : 213 - 217
[22] LOCALIZATION IN THE QUANTUM HALL REGIME
AOKI, H
SURFACE SCIENCE, 1988, 196 (1-3) : 107 - 119
[23] Thermopower in the Quantum Hall Regime
d'Ambrumenil, N.
Morf, R. H.
PHYSICAL REVIEW LETTERS, 2013, 111 (13)
[24] Localization in the quantum Hall regime
Kramer, B
Kettemann, S
Ohtsuki, T
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2003, 20 (1-2): : 172 - 187
[25] Bilayer quantum Hall ferromagnet in a periodic potential
Sun, Jianmin
Murthy, Ganpathy
Fertig, H. A.
Bray-Ali, Noah
PHYSICAL REVIEW B, 2010, 81 (19):
[26] Quantum Hall effect in the presence of an antidot potential
Lei, M
Zhu, NJ
Guo, H
PHYSICAL REVIEW B, 1995, 52 (23): : 16784 - 16792
[27] Quantum Hall effect in the presence of an antidot potential
Lei, M.
Zhu, N.
Guo, H.
Physical Review B: Condensed Matter, 52 (23):
[28] Gate-Defined Graphene Quantum Point Contact in the Quantum Hall Regime
Nakaharai, S.
Williams, J. R.
Marcus, C. M.
PHYSICAL REVIEW LETTERS, 2011, 107 (03)
[29] Optimal confinement potential in quantum Hall droplets
Tolo, E.
Harju, A.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2010, 42 (04): : 1050 - 1053
[30] BOUNDARY POTENTIAL DISTRIBUTION AND QUANTIZATION OF THE RESISTANCE OF 2D-STRUCTURES IN THE HALL REGIME
ALTSHULER, EL
TRUNOV, NN
JETP LETTERS, 1985, 42 (03) : 119 - 121

← 1 2 3 4 5 →