Spin-dependent transport in a two-dimensional GaAs electron gas in a parallel magnetic field

Yu Ming Cheng; Tsai Yu Huang; Chao Han Pao; Chun Cheng Lee; C. T. Liang; M. Y. Simmons; C. G. Smith; D. A. Ritchie; M. Pepper; Gil Ho Kim; J. Y. Leem

doi:10.1016/S1386-9477(01)00319-8

Spin-dependent transport in a two-dimensional GaAs electron gas in a parallel magnetic field

Yu Ming Cheng
, Tsai Yu Huang
, Chao Han Pao
, Chun Cheng Lee
, C. T. Liang
, M. Y. Simmons
, C. G. Smith
, D. A. Ritchie
, M. Pepper
, Gil Ho Kim
, J. Y. Leem

Research output: Contribution to journal › Conference article › peer-review

Abstract

We report low-temperature magnetoresistivity measurements of high-quality gated two-dimensional (2D) electron systems. In the dilute electron density limit, we show evidence for spin polarisation in an in-plane magnetic field. Using a simple model, we estimate the Landé g-factor in this dilute two-dimensional electron gas to be about 3.32. The enhanced Landé g-factor compared with that of a bulk GaAs 2D electron system (0.44) is ascribed to electron-electron interaction effects at ultra-low electron densities.

Original language	English
Pages (from-to)	412-415
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	12
Issue number	1-4
DOIs	https://doi.org/10.1016/S1386-9477(01)00319-8
State	Published - Jan 2002
Externally published	Yes
Event	14th International Conference on the - Prague, Czech Republic Duration: 30 Jul 2001 → 3 Aug 2001

Keywords

g-factor
Parallel magnetic field
Spin

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10.1016/S1386-9477(01)00319-8

Cite this

Cheng, Y. M., Huang, T. Y., Pao, C. H., Lee, C. C., Liang, C. T., Simmons, M. Y., Smith, C. G., Ritchie, D. A., Pepper, M., Kim, G. H., & Leem, J. Y. (2002). Spin-dependent transport in a two-dimensional GaAs electron gas in a parallel magnetic field. Physica E: Low-Dimensional Systems and Nanostructures, 12(1-4), 412-415. https://doi.org/10.1016/S1386-9477(01)00319-8

@article{9052182031d149f9b7be29dbe498f105,

title = "Spin-dependent transport in a two-dimensional GaAs electron gas in a parallel magnetic field",

abstract = "We report low-temperature magnetoresistivity measurements of high-quality gated two-dimensional (2D) electron systems. In the dilute electron density limit, we show evidence for spin polarisation in an in-plane magnetic field. Using a simple model, we estimate the Land{\'e} g-factor in this dilute two-dimensional electron gas to be about 3.32. The enhanced Land{\'e} g-factor compared with that of a bulk GaAs 2D electron system (0.44) is ascribed to electron-electron interaction effects at ultra-low electron densities.",

keywords = "g-factor, Parallel magnetic field, Spin",

author = "Cheng, \{Yu Ming\} and Huang, \{Tsai Yu\} and Pao, \{Chao Han\} and Lee, \{Chun Cheng\} and Liang, \{C. T.\} and Simmons, \{M. Y.\} and Smith, \{C. G.\} and Ritchie, \{D. A.\} and M. Pepper and Kim, \{Gil Ho\} and Leem, \{J. Y.\}",

year = "2002",

month = jan,

doi = "10.1016/S1386-9477(01)00319-8",

language = "English",

volume = "12",

pages = "412--415",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier B.V.",

number = "1-4",

note = "14th International Conference on the ; Conference date: 30-07-2001 Through 03-08-2001",

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TY - JOUR

T1 - Spin-dependent transport in a two-dimensional GaAs electron gas in a parallel magnetic field

AU - Cheng, Yu Ming

AU - Huang, Tsai Yu

AU - Pao, Chao Han

AU - Lee, Chun Cheng

AU - Liang, C. T.

AU - Simmons, M. Y.

AU - Smith, C. G.

AU - Ritchie, D. A.

AU - Pepper, M.

AU - Kim, Gil Ho

AU - Leem, J. Y.

PY - 2002/1

Y1 - 2002/1

N2 - We report low-temperature magnetoresistivity measurements of high-quality gated two-dimensional (2D) electron systems. In the dilute electron density limit, we show evidence for spin polarisation in an in-plane magnetic field. Using a simple model, we estimate the Landé g-factor in this dilute two-dimensional electron gas to be about 3.32. The enhanced Landé g-factor compared with that of a bulk GaAs 2D electron system (0.44) is ascribed to electron-electron interaction effects at ultra-low electron densities.

AB - We report low-temperature magnetoresistivity measurements of high-quality gated two-dimensional (2D) electron systems. In the dilute electron density limit, we show evidence for spin polarisation in an in-plane magnetic field. Using a simple model, we estimate the Landé g-factor in this dilute two-dimensional electron gas to be about 3.32. The enhanced Landé g-factor compared with that of a bulk GaAs 2D electron system (0.44) is ascribed to electron-electron interaction effects at ultra-low electron densities.

KW - g-factor

KW - Parallel magnetic field

KW - Spin

UR - https://www.scopus.com/pages/publications/0035239499

U2 - 10.1016/S1386-9477(01)00319-8

DO - 10.1016/S1386-9477(01)00319-8

M3 - Conference article

AN - SCOPUS:0035239499

SN - 1386-9477

VL - 12

SP - 412

EP - 415

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-4

T2 - 14th International Conference on the

Y2 - 30 July 2001 through 3 August 2001

ER -

Spin-dependent transport in a two-dimensional GaAs electron gas in a parallel magnetic field

Abstract

Keywords

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