Spectroscopic measurement of large exchange enhancement of a spin-polarized 2D electron gas

A. Pinczuk; B. S. Dennis; D. Heiman; C. Kallin; L. Brey; C. Tejedor; S. Schmitt-Rink; L. N. Pfeiffer; K. W. West

doi:10.1103/PhysRevLett.68.3623

Spectroscopic measurement of large exchange enhancement of a spin-polarized 2D electron gas

A. Pinczuk, B. S. Dennis, D. Heiman, C. Kallin, L. Brey, C. Tejedor, S. Schmitt-Rink, L. N. Pfeiffer, K. W. West

Research output: Contribution to journal › Article › peer-review

122 Scopus citations

Abstract

Exchange enhancements of the spin-polarized 2D electron gas are determined for the first time by inelastic light scattering from spin-flip inter-Landau-level and intersubband excitations. In the magnetic quantum limit =1 the splitting between long wavelength magnetoplasmons and spin-flip inter-Landau-level excitations is a direct spectroscopic measurement of the enhanced exchange energy. At =1 the enhancements in GaAs quantum wells are in agreement with the Hartree-Fock approximation.

Original language	English (US)
Pages (from-to)	3623-3626
Number of pages	4
Journal	Physical review letters
Volume	68
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.68.3623
State	Published - 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.68.3623

Cite this

@article{eb2c36f670b44487b525f6ed4972c645,

title = "Spectroscopic measurement of large exchange enhancement of a spin-polarized 2D electron gas",

abstract = "Exchange enhancements of the spin-polarized 2D electron gas are determined for the first time by inelastic light scattering from spin-flip inter-Landau-level and intersubband excitations. In the magnetic quantum limit =1 the splitting between long wavelength magnetoplasmons and spin-flip inter-Landau-level excitations is a direct spectroscopic measurement of the enhanced exchange energy. At =1 the enhancements in GaAs quantum wells are in agreement with the Hartree-Fock approximation.",

author = "A. Pinczuk and Dennis, \{B. S.\} and D. Heiman and C. Kallin and L. Brey and C. Tejedor and S. Schmitt-Rink and Pfeiffer, \{L. N.\} and West, \{K. W.\}",

year = "1992",

doi = "10.1103/PhysRevLett.68.3623",

language = "English (US)",

volume = "68",

pages = "3623--3626",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "24",

}

TY - JOUR

T1 - Spectroscopic measurement of large exchange enhancement of a spin-polarized 2D electron gas

AU - Pinczuk, A.

AU - Dennis, B. S.

AU - Heiman, D.

AU - Kallin, C.

AU - Brey, L.

AU - Tejedor, C.

AU - Schmitt-Rink, S.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1992

Y1 - 1992

N2 - Exchange enhancements of the spin-polarized 2D electron gas are determined for the first time by inelastic light scattering from spin-flip inter-Landau-level and intersubband excitations. In the magnetic quantum limit =1 the splitting between long wavelength magnetoplasmons and spin-flip inter-Landau-level excitations is a direct spectroscopic measurement of the enhanced exchange energy. At =1 the enhancements in GaAs quantum wells are in agreement with the Hartree-Fock approximation.

AB - Exchange enhancements of the spin-polarized 2D electron gas are determined for the first time by inelastic light scattering from spin-flip inter-Landau-level and intersubband excitations. In the magnetic quantum limit =1 the splitting between long wavelength magnetoplasmons and spin-flip inter-Landau-level excitations is a direct spectroscopic measurement of the enhanced exchange energy. At =1 the enhancements in GaAs quantum wells are in agreement with the Hartree-Fock approximation.

UR - https://www.scopus.com/pages/publications/0001480920

UR - https://www.scopus.com/inward/citedby.url?scp=0001480920&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.68.3623

DO - 10.1103/PhysRevLett.68.3623

M3 - Article

C2 - 10045751

AN - SCOPUS:0001480920

SN - 0031-9007

VL - 68

SP - 3623

EP - 3626

JO - Physical review letters

JF - Physical review letters

IS - 24

ER -

Spectroscopic measurement of large exchange enhancement of a spin-polarized 2D electron gas

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this