Experimental evidence for Luttinger liquid behavior in sufficiently long GaAs V-groove quantum wires

E. Levy; I. Sternfeld; M. Eshkol; M. Karpovski; B. Dwir; A. Rudra; E. Kapon; Y. Oreg; A. Palevski

doi:10.1103/PhysRevB.85.045315

Experimental evidence for Luttinger liquid behavior in sufficiently long GaAs V-groove quantum wires

E. Levy, I. Sternfeld, M. Eshkol, M. Karpovski, B. Dwir, A. Rudra, E. Kapon, Y. Oreg, A. Palevski

Tel Aviv University, Weizmann Institute of Science

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

Abstract

We have measured the temperature dependence of the conductance of long V-groove quantum wires fabricated using GaAs/AlGaAs heterostructures, in a wide temperature range (200mK<T<4.2K). We find that for our quantum wires the Fermi velocity can be as low as v _F≅5×104m/s, corresponding to an interaction parameter value of g≅0.56. This value suggests that our data are consistent with theories developed within the framework of the Luttinger liquid model in the presence of a single strong barrier (weak link).

Original language	English
Article number	045315
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.85.045315
State	Published - 18 Jan 2012

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.85.045315

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title = "Experimental evidence for Luttinger liquid behavior in sufficiently long GaAs V-groove quantum wires",

abstract = "We have measured the temperature dependence of the conductance of long V-groove quantum wires fabricated using GaAs/AlGaAs heterostructures, in a wide temperature range (200mKF≅5×104m/s, corresponding to an interaction parameter value of g≅0.56. This value suggests that our data are consistent with theories developed within the framework of the Luttinger liquid model in the presence of a single strong barrier (weak link).",

author = "E. Levy and I. Sternfeld and M. Eshkol and M. Karpovski and B. Dwir and A. Rudra and E. Kapon and Y. Oreg and A. Palevski",

note = "Israel Science Foundation; Israel Academy of Sciences and Humanities [530/08]; Fonds National Suisse de la Recherche ScientifiqueWe thank A. Mirlin, I. Krive, and N.M. Makarov for fruitful discussions. The work was supported by the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities, Grant No. 530/08. The work at EPFL was supported by the Fonds National Suisse de la Recherche Scientifique.",

year = "2012",

month = jan,

day = "18",

doi = "10.1103/PhysRevB.85.045315",

language = "الإنجليزيّة",

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journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

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TY - JOUR

T1 - Experimental evidence for Luttinger liquid behavior in sufficiently long GaAs V-groove quantum wires

AU - Levy, E.

AU - Sternfeld, I.

AU - Eshkol, M.

AU - Karpovski, M.

AU - Dwir, B.

AU - Rudra, A.

AU - Kapon, E.

AU - Oreg, Y.

AU - Palevski, A.

N1 - Israel Science Foundation; Israel Academy of Sciences and Humanities [530/08]; Fonds National Suisse de la Recherche ScientifiqueWe thank A. Mirlin, I. Krive, and N.M. Makarov for fruitful discussions. The work was supported by the Israel Science Foundation founded by the Israel Academy of Sciences and Humanities, Grant No. 530/08. The work at EPFL was supported by the Fonds National Suisse de la Recherche Scientifique.

PY - 2012/1/18

Y1 - 2012/1/18

N2 - We have measured the temperature dependence of the conductance of long V-groove quantum wires fabricated using GaAs/AlGaAs heterostructures, in a wide temperature range (200mKF≅5×104m/s, corresponding to an interaction parameter value of g≅0.56. This value suggests that our data are consistent with theories developed within the framework of the Luttinger liquid model in the presence of a single strong barrier (weak link).

AB - We have measured the temperature dependence of the conductance of long V-groove quantum wires fabricated using GaAs/AlGaAs heterostructures, in a wide temperature range (200mKF≅5×104m/s, corresponding to an interaction parameter value of g≅0.56. This value suggests that our data are consistent with theories developed within the framework of the Luttinger liquid model in the presence of a single strong barrier (weak link).

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U2 - 10.1103/PhysRevB.85.045315

DO - 10.1103/PhysRevB.85.045315

M3 - مقالة

SN - 1098-0121

VL - 85

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 4

M1 - 045315

ER -

Experimental evidence for Luttinger liquid behavior in sufficiently long GaAs V-groove quantum wires

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