Quantum lifetime of two-dimensional holes

J. P. Eisenstein; D. Syphers; L. N. Pfeiffer; K. W. West

doi:10.1016/j.ssc.2007.06.010

Quantum lifetime of two-dimensional holes

J. P. Eisenstein, D. Syphers, L. N. Pfeiffer, K. W. West

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

11 Scopus citations

Abstract

The quantum lifetime of two-dimensional holes in a GaAs/AlGaAs double quantum well is determined via tunneling spectroscopy. At low temperatures the lifetime is limited by impurity scattering but at higher temperatures hole-hole Coulomb scattering dominates. Our results are consistent with the Fermi liquid theory, at least up to r_s = 11. At the highest temperatures the measured width of the hole spectral function becomes comparable to the Fermi energy. A new, tunneling-spectroscopic method for determining the in-plane effective mass of the holes is also demonstrated.

Original language	English (US)
Pages (from-to)	365-368
Number of pages	4
Journal	Solid State Communications
Volume	143
Issue number	8-9
DOIs	https://doi.org/10.1016/j.ssc.2007.06.010
State	Published - Aug 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Materials Chemistry

Keywords

D. Holes
D. Quantum lifetime
D. Tunneling

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10.1016/j.ssc.2007.06.010

Cite this

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title = "Quantum lifetime of two-dimensional holes",

abstract = "The quantum lifetime of two-dimensional holes in a GaAs/AlGaAs double quantum well is determined via tunneling spectroscopy. At low temperatures the lifetime is limited by impurity scattering but at higher temperatures hole-hole Coulomb scattering dominates. Our results are consistent with the Fermi liquid theory, at least up to rs = 11. At the highest temperatures the measured width of the hole spectral function becomes comparable to the Fermi energy. A new, tunneling-spectroscopic method for determining the in-plane effective mass of the holes is also demonstrated.",

keywords = "D. Holes, D. Quantum lifetime, D. Tunneling",

author = "Eisenstein, {J. P.} and D. Syphers and Pfeiffer, {L. N.} and West, {K. W.}",

year = "2007",

month = aug,

doi = "10.1016/j.ssc.2007.06.010",

language = "English (US)",

volume = "143",

pages = "365--368",

journal = "Solid State Communications",

issn = "0038-1098",

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TY - JOUR

T1 - Quantum lifetime of two-dimensional holes

AU - Eisenstein, J. P.

AU - Syphers, D.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2007/8

Y1 - 2007/8

N2 - The quantum lifetime of two-dimensional holes in a GaAs/AlGaAs double quantum well is determined via tunneling spectroscopy. At low temperatures the lifetime is limited by impurity scattering but at higher temperatures hole-hole Coulomb scattering dominates. Our results are consistent with the Fermi liquid theory, at least up to rs = 11. At the highest temperatures the measured width of the hole spectral function becomes comparable to the Fermi energy. A new, tunneling-spectroscopic method for determining the in-plane effective mass of the holes is also demonstrated.

AB - The quantum lifetime of two-dimensional holes in a GaAs/AlGaAs double quantum well is determined via tunneling spectroscopy. At low temperatures the lifetime is limited by impurity scattering but at higher temperatures hole-hole Coulomb scattering dominates. Our results are consistent with the Fermi liquid theory, at least up to rs = 11. At the highest temperatures the measured width of the hole spectral function becomes comparable to the Fermi energy. A new, tunneling-spectroscopic method for determining the in-plane effective mass of the holes is also demonstrated.

KW - D. Holes

KW - D. Quantum lifetime

KW - D. Tunneling

UR - http://www.scopus.com/inward/record.url?scp=34447632039&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34447632039&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2007.06.010

DO - 10.1016/j.ssc.2007.06.010

M3 - Article

AN - SCOPUS:34447632039

SN - 0038-1098

VL - 143

SP - 365

EP - 368

JO - Solid State Communications

JF - Solid State Communications

IS - 8-9

ER -

Quantum lifetime of two-dimensional holes

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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