Magnetotransport measurements on freely suspended two-dimensional electron gases

被引：33

作者：

Blick, RH

Monzon, FG

Wegscheider, W

Bichler, M

Stern, F

Roukes, ML

机构：

[1] CALTECH, Pasadena, CA 91125 USA

[2] Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany

[3] IBM Corp, TJ Watson Res Ctr, Yorktown Heights, NY 10598 USA

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.62.17103

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present magnetotransport measurements on freely suspended two-dimensional electron gases from AlxGa1-xAs/GaAs heterostructures. The technique to realize such devices relies on a specially molecular beam epitaxy grown GaAs/AlxGa1-xAs-heterostructure, including a sacrificial layer. We fabricated simple mini-Hall-bars as well as quantum cavities and quantum dot systems. We fmd well-pronounced Shubnikov-de Haas oscillations and observe commensurability resonances, allowing characterization of the electron gas in these 100-nm thin membranes.

引用

页码：17103 / 17107

页数：5

共 12 条

[1] Strain-sensing cryogenic field-effect transistor for integrated strain detection in GaAs/AlGaAs microelectromechanical systems
Beck, RG
Eriksson, MA
Westervelt, RM
Chapman, KL
Gossard, AC
[J]. APPLIED PHYSICS LETTERS, 1996, 68 (26) : 3763 - 3765
[2] GaAs/AlGaAs self-sensing cantilevers for low temperature scanning probe microscopy
Beck, RG
Eriksson, MA
Topinka, MA
Westervelt, RM
Maranowski, KD
Gossard, AC
[J]. APPLIED PHYSICS LETTERS, 1998, 73 (08) : 1149 - 1151
[3] ALGAAS LASERS WITH MICRO-CLEAVED MIRRORS SUITABLE FOR MONOLITHIC INTEGRATION
BLAUVELT, H
BARCHAIM, N
FEKETE, D
MARGALIT, S
YARIV, A
[J]. APPLIED PHYSICS LETTERS, 1982, 40 (04) : 289 - 290
[4] Spontaneous emission of phonons by coupled quantum dots
Brandes, T
Kramer, B
[J]. PHYSICAL REVIEW LETTERS, 1999, 83 (15) : 3021 - 3024
[5] EXPERIMENTAL-DETERMINATION OF THE EDGE DEPLETION WIDTH OF THE TWO-DIMENSIONAL ELECTRON-GAS IN GAAS/ALXGA1-XAS
CHOI, KK
TSUI, DC
ALAVI, K
[J]. APPLIED PHYSICS LETTERS, 1987, 50 (02) : 110 - 112
[6] Spontaneous emission spectrum in double quantum dot devices
Fujisawa, T
Oosterkamp, TH
van der Wiel, WG
Broer, BW
Aguado, R
Tarucha, S
Kouwenhoven, LP
[J]. SCIENCE, 1998, 282 (5390) : 932 - 935
[7] ELECTRON-STATES IN A GAAS QUANTUM DOT IN A MAGNETIC-FIELD
KUMAR, A
LAUX, SE
STERN, F
[J]. PHYSICAL REVIEW B, 1990, 42 (08): : 5166 - 5175
[8] GIANT MAGNETORESISTANCE IN LATERAL SURFACE SUPERLATTICES
MULLER, G
STREDA, P
WEISS, D
VONKLITZING, K
WEIMANN, G
[J]. PHYSICAL REVIEW B, 1994, 50 (12): : 8938 - 8941
[9] Measurement of the quantum of thermal conductance
Schwab, K
Henriksen, EA
Worlock, JM
Roukes, ML
[J]. NATURE, 2000, 404 (6781) : 974 - 977
[10] BOUNDARY SCATTERING IN QUANTUM WIRES
THORNTON, TJ
ROUKES, ML
SCHERER, A
VANDEGAAG, BP
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (19) : 2128 - 2131

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