EDGE OF THE 2-DIMENSIONAL ELECTRON-GAS IN A GATED HETEROSTRUCTURE

被引：41

作者：

LARKIN, IA

DAVIES, JH

机构：

[1] Department of Electronics and Electrical Engineering, Glasgow University, Glasgow

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevB.52.R5535

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe a quantitative electrostatic theory of the two-dimensional electron gas (2DEG) confined by a semi-infinite gate. It includes the finite depth of the 2DEG below the surface of a heterostructure, which enables us to treat the whole range of gate voltages. Two models are used for the boundary condition on the free surface, with either pinned potential or frozen charge. Our results predict the position and width of the strips of incompressible liquid in the quantum Hall regime, and are in good agreement with recent experiments.

引用

页码：R5535 / R5538

页数：4

共 15 条

[1] EDGE CHANNELS FOR THE FRACTIONAL QUANTUM HALL-EFFECT
BEENAKKER, CWJ
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (02) : 216 - 219
[2] A UNIFIED TRANSPORT-THEORY FOR THE INTEGRAL AND FRACTIONAL QUANTUM HALL-EFFECTS - PHASE BOUNDARIES, EDGE CURRENTS, AND TRANSMISSION REFLECTION PROBABILITIES
CHANG, AM
[J]. SOLID STATE COMMUNICATIONS, 1990, 74 (09) : 871 - 876
[3] ELECTROSTATICS OF EDGE CHANNELS
CHKLOVSKII, DB
SHKLOVSKII, BI
GLAZMAN, LI
[J]. PHYSICAL REVIEW B, 1992, 46 (07): : 4026 - 4034
[4] COULOMB INTERACTIONS AND THE INTEGER QUANTUM HALL-EFFECT - SCREENING AND TRANSPORT
COOPER, NR
CHALKER, JT
[J]. PHYSICAL REVIEW B, 1993, 48 (07): : 4530 - 4544
[5] THEORY OF POTENTIAL MODULATION IN LATERAL SURFACE SUPERLATTICES
DAVIES, JH
LARKIN, IA
[J]. PHYSICAL REVIEW B, 1994, 49 (07): : 4800 - 4809
[6] DAVIES JH, 1994, HETEROSTRUCTURE QUAN, V24
[7] EFFECTS OF ELECTRON-ELECTRON INTERACTIONS ON THE GROUND-STATE OF QUANTUM HALL EDGE STATES
GELFAND, BY
DEMPSEY, J
HALPERIN, BI
[J]. SURFACE SCIENCE, 1994, 305 (1-3) : 166 - 171
[8] LATERAL POSITION CONTROL OF AN ELECTRON CHANNEL IN A SPLIT-GATE DEVICE
GLAZMAN, LI
LARKIN, IA
[J]. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1991, 6 (01) : 32 - 35
[9] EXPERIMENTAL-EVIDENCE FOR FINITE-WIDTH EDGE CHANNELS IN INTEGER AND FRACTIONAL QUANTUM HALL-EFFECTS
HWANG, SW
TSUI, DC
SHAYEGAN, M
[J]. PHYSICAL REVIEW B, 1993, 48 (11): : 8161 - 8165
[10] METHOD TO INVESTIGATE THE RANDOM POTENTIAL IN A QUANTUM POINT-CONTACT
LARKIN, IA
SUKHORUKOV, EV
[J]. PHYSICAL REVIEW B, 1994, 49 (08): : 5498 - 5507

← 1 2 →