Exchange-enhanced Landé g-factor, effective disorder and collapse of spin-splitting in a two-dimensional GaAs electron system

Tsai Yu Huang; Yu Ming Cheng; C. T. Liang; Gil Ho Kim; J. Y. Leem

doi:10.1016/S1386-9477(01)00326-5

Exchange-enhanced Landé g-factor, effective disorder and collapse of spin-splitting in a two-dimensional GaAs electron system

Tsai Yu Huang
, Yu Ming Cheng
, C. T. Liang
, Gil Ho Kim
, J. Y. Leem

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

4 Scopus citations

Abstract

We have measured the low-temperature transport properties of front-gated GaAs/Al_0.33Ga_0.67As heterostructures. Collapse of spin-splitting and an enhanced Landé |g|-factor at Landau level filling factors both ν=3 and 1 are observed. Our experimental results show direct evidence that the electron-electron interactions are stronger at ν=3 than those at ν=1 over approximately the same perpendicular magnetic field range.

Original language	English
Pages (from-to)	424-427
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)00326-5
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
GaAs
Spin

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10.1016/S1386-9477(01)00326-5

Cite this

@article{dd907117fc11407e8e63ec567a63006a,

title = "Exchange-enhanced Land{\'e} g-factor, effective disorder and collapse of spin-splitting in a two-dimensional GaAs electron system",

abstract = "We have measured the low-temperature transport properties of front-gated GaAs/Al0.33Ga0.67As heterostructures. Collapse of spin-splitting and an enhanced Land{\'e} |g|-factor at Landau level filling factors both ν=3 and 1 are observed. Our experimental results show direct evidence that the electron-electron interactions are stronger at ν=3 than those at ν=1 over approximately the same perpendicular magnetic field range.",

keywords = "g-Factor, GaAs, Spin",

author = "Huang, \{Tsai Yu\} and Cheng, \{Yu Ming\} and Liang, \{C. T.\} and Kim, \{Gil Ho\} and Leem, \{J. Y.\}",

year = "2002",

month = jan,

doi = "10.1016/S1386-9477(01)00326-5",

language = "English",

volume = "12",

pages = "424--427",

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",

}

TY - JOUR

T1 - Exchange-enhanced Landé g-factor, effective disorder and collapse of spin-splitting in a two-dimensional GaAs electron system

AU - Huang, Tsai Yu

AU - Cheng, Yu Ming

AU - Liang, C. T.

AU - Kim, Gil Ho

AU - Leem, J. Y.

PY - 2002/1

Y1 - 2002/1

N2 - We have measured the low-temperature transport properties of front-gated GaAs/Al0.33Ga0.67As heterostructures. Collapse of spin-splitting and an enhanced Landé |g|-factor at Landau level filling factors both ν=3 and 1 are observed. Our experimental results show direct evidence that the electron-electron interactions are stronger at ν=3 than those at ν=1 over approximately the same perpendicular magnetic field range.

AB - We have measured the low-temperature transport properties of front-gated GaAs/Al0.33Ga0.67As heterostructures. Collapse of spin-splitting and an enhanced Landé |g|-factor at Landau level filling factors both ν=3 and 1 are observed. Our experimental results show direct evidence that the electron-electron interactions are stronger at ν=3 than those at ν=1 over approximately the same perpendicular magnetic field range.

KW - g-Factor

KW - GaAs

KW - Spin

UR - https://www.scopus.com/pages/publications/0035239595

U2 - 10.1016/S1386-9477(01)00326-5

DO - 10.1016/S1386-9477(01)00326-5

M3 - Conference article

AN - SCOPUS:0035239595

SN - 1386-9477

VL - 12

SP - 424

EP - 427

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 -

Exchange-enhanced Landé g-factor, effective disorder and collapse of spin-splitting in a two-dimensional GaAs electron system

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Keywords

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