Spin susceptibility of a variable-density two-dimensional electron system

J. Zhu; H. L. Stormer; L. N. Pfeiffer; K. W. Baldwin; K. W. West

doi:10.1016/j.physe.2003.11.255

Spin susceptibility of a variable-density two-dimensional electron system

J. Zhu, H. L. Stormer, L. N. Pfeiffer, K. W. Baldwin, K. W. West

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

2 Scopus citations

Abstract

We determine the spin susceptibility in a variable-density two-dimensional electron system in GaAs/AlGaAs. Our measurements extend over a wide range of low densities from 2 × 10 ⁹ to 4 × 10 ¹⁰ cm ^-2. Our data can be well described by an empirical equation which incorporates both the density dependence and the magnetic field dependence of the spin susceptibility. It can explain the anomalous g-factors reported recently in GaAs electron and hole systems. The extrapolated paramagnetic spin susceptibility increases with decreasing density as expected from theoretical calculations.

Original language	English (US)
Pages (from-to)	228-231
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	22
Issue number	1-3
DOIs	https://doi.org/10.1016/j.physe.2003.11.255
State	Published - Apr 2004
Event	15th International Conference on ELectronic Propreties - Nara, Japan Duration: Jul 14 2003 → Jul 18 2003

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/j.physe.2003.11.255

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title = "Spin susceptibility of a variable-density two-dimensional electron system",

abstract = "We determine the spin susceptibility in a variable-density two-dimensional electron system in GaAs/AlGaAs. Our measurements extend over a wide range of low densities from 2 × 10 9 to 4 × 10 10 cm -2. Our data can be well described by an empirical equation which incorporates both the density dependence and the magnetic field dependence of the spin susceptibility. It can explain the anomalous g-factors reported recently in GaAs electron and hole systems. The extrapolated paramagnetic spin susceptibility increases with decreasing density as expected from theoretical calculations.",

author = "J. Zhu and Stormer, {H. L.} and Pfeiffer, {L. N.} and Baldwin, {K. W.} and West, {K. W.}",

note = "Funding Information: We thank D.C. Tsui for inspiring discussions and A. Millis for many insightful suggestions. Financial support from the W.M. Keck Foundation is gratefully acknowledged.; 15th International Conference on ELectronic Propreties ; Conference date: 14-07-2003 Through 18-07-2003",

year = "2004",

month = apr,

doi = "10.1016/j.physe.2003.11.255",

language = "English (US)",

volume = "22",

pages = "228--231",

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

issn = "1386-9477",

publisher = "Elsevier B.V.",

number = "1-3",

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TY - JOUR

T1 - Spin susceptibility of a variable-density two-dimensional electron system

AU - Zhu, J.

AU - Stormer, H. L.

AU - Pfeiffer, L. N.

AU - Baldwin, K. W.

AU - West, K. W.

N1 - Funding Information: We thank D.C. Tsui for inspiring discussions and A. Millis for many insightful suggestions. Financial support from the W.M. Keck Foundation is gratefully acknowledged.

PY - 2004/4

Y1 - 2004/4

N2 - We determine the spin susceptibility in a variable-density two-dimensional electron system in GaAs/AlGaAs. Our measurements extend over a wide range of low densities from 2 × 10 9 to 4 × 10 10 cm -2. Our data can be well described by an empirical equation which incorporates both the density dependence and the magnetic field dependence of the spin susceptibility. It can explain the anomalous g-factors reported recently in GaAs electron and hole systems. The extrapolated paramagnetic spin susceptibility increases with decreasing density as expected from theoretical calculations.

AB - We determine the spin susceptibility in a variable-density two-dimensional electron system in GaAs/AlGaAs. Our measurements extend over a wide range of low densities from 2 × 10 9 to 4 × 10 10 cm -2. Our data can be well described by an empirical equation which incorporates both the density dependence and the magnetic field dependence of the spin susceptibility. It can explain the anomalous g-factors reported recently in GaAs electron and hole systems. The extrapolated paramagnetic spin susceptibility increases with decreasing density as expected from theoretical calculations.

UR - http://www.scopus.com/inward/record.url?scp=1842684732&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1842684732&partnerID=8YFLogxK

U2 - 10.1016/j.physe.2003.11.255

DO - 10.1016/j.physe.2003.11.255

M3 - Conference article

AN - SCOPUS:1842684732

SN - 1386-9477

VL - 22

SP - 228

EP - 231

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-3

T2 - 15th International Conference on ELectronic Propreties

Y2 - 14 July 2003 through 18 July 2003

ER -

Spin susceptibility of a variable-density two-dimensional electron system

Abstract

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