HIGH-FIELD MAGNETORESISTANCE IN A PERIODICALLY MODULATED 2-DIMENSIONAL ELECTRON-GAS

被引：22

作者：

GEIM, AK

TABORYSKI, R

KRISTENSEN, A

DUBONOS, SV

LINDELOF, PE

机构：

[1] ACAD SCI,INST MICROELECTR TECHNOL,CHERNOGOLOLOVKA 142432,USSR

[2] UNIV COPENHAGEN,HC ORSTED INST,PHYS LAB,DK-2100 COPENHAGEN,DENMARK

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.46.4324

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have extended earlier measurements of the magnetoresistance in a periodically modulated two-dimensional electron gas to high magnetic fields, where the cyclotron radius, r(c), is much smaller than the period, a, of modulation. A giant nonoscillatory magnetoresistance was found to arise beyond the range of low-field (Weiss) oscillations periodic in 1/B. Its value in a magnetic field of a few tesla may exceed the zero-field resistance value, rho-0, by 1 to 2 orders of magnitude. This result is in agreement with the semiclassical theory by Beenakker, if a modulation of the electron mobility is taken into account.

引用

页码：4324 / 4327

页数：4

共 11 条

[1] Abrikosov A. A., 1988, FUNDAMENTALS THEORY
[2] GUIDING-CENTER-DRIFT RESONANCE IN A PERIODICALLY MODULATED TWO-DIMENSIONAL ELECTRON-GAS
BEENAKKER, CWJ
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (17) : 2020 - 2023
[3] MAGNETIC BREAKDOWN OF A 2-DIMENSIONAL ELECTRON-GAS IN A PERIODIC POTENTIAL
BETON, PH
DELLOW, MW
MAIN, PC
ALVES, ES
EAVES, L
BEAUMONT, SP
WILKINSON, CDW
[J]. PHYSICAL REVIEW B, 1991, 43 (12): : 9980 - 9983
[4] MAGNETORESISTANCE OF A 2-DIMENSIONAL ELECTRON-GAS IN A STRONG PERIODIC POTENTIAL
BETON, PH
ALVES, ES
MAIN, PC
EAVES, L
DELLOW, MW
HENINI, M
HUGHES, OH
BEAUMONT, SP
WILKINSON, CDW
[J]. PHYSICAL REVIEW B, 1990, 42 (14): : 9229 - 9232
[5] MAGNETOTRANSPORT THROUGH AN ANTIDOT LATTICE IN GAAS-ALXGA1-XAS HETEROSTRUCTURES
ENSSLIN, K
PETROFF, PM
[J]. PHYSICAL REVIEW B, 1990, 41 (17): : 12307 - 12310
[6] NOVEL MAGNETORESISTANCE OSCILLATIONS IN A 2-DIMENSIONAL SUPERLATTICE POTENTIAL
FANG, H
STILES, PJ
[J]. PHYSICAL REVIEW B, 1990, 41 (14): : 10171 - 10174
[7] TRANSPORT IN A SUPERLATTICE OF 1D BALLISTIC CHANNELS
SMITH, CG
PEPPER, M
NEWBURY, R
AHMED, H
HASKO, DG
PEACOCK, DC
FROST, JEF
RITCHIE, DA
JONES, GAC
HILL, G
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (14) : 3405 - 3414
[8] ELECTRON PINBALL AND COMMENSURATE ORBITS IN A PERIODIC ARRAY OF SCATTERERS
WEISS, D
ROUKES, ML
MENSCHIG, A
GRAMBOW, P
VONKLITZING, K
WEIMANN, G
[J]. PHYSICAL REVIEW LETTERS, 1991, 66 (21) : 2790 - 2793
[9] MAGNETORESISTANCE OSCILLATIONS IN A TWO-DIMENSIONAL ELECTRON-GAS INDUCED BY A SUBMICROMETER PERIODIC POTENTIAL
WEISS, D
VONKLITZING, K
PLOOG, K
WEIMANN, G
[J]. EUROPHYSICS LETTERS, 1989, 8 (02): : 179 - 184
[10] LANDAU-BAND CONDUCTIVITY IN A TWO-DIMENSIONAL ELECTRON-SYSTEM MODULATED BY AN ARTIFICIAL ONE-DIMENSIONAL SUPERLATTICE POTENTIAL
WINKLER, RW
KOTTHAUS, JP
PLOOG, K
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (10) : 1177 - 1180

← 1 2 →