Resistivity saturation in a weakly interacting two-dimensional Fermi liquid at intermediate temperatures

Xiaoqing Zhou; B. Schmidt; L. W. Engel; G. Gervais; L. N. Pfeiffer; K. W. West; S. Das Sarma

doi:10.1103/PhysRevB.85.041310

Resistivity saturation in a weakly interacting two-dimensional Fermi liquid at intermediate temperatures

Xiaoqing Zhou, B. Schmidt, L. W. Engel, G. Gervais, L. N. Pfeiffer, K. W. West, S. Das Sarma

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5 Scopus citations

Abstract

We report an unusual temperature dependence in the magnetoresistance of a weakly interacting high mobility 2D electron gas (2DEG) under a parallel magnetic field and in the current configuration I-B. While the linear temperature dependence below 10 K and the exponential temperature dependence above 40 K agree with the existing theory of electron-phonon scattering, a field-induced resistivity saturation behavior characterized by an almost complete suppression of the temperature dependence is observed from approximately 20 to 40 K, which is in sharp contrast to the phenomenology observed in the configuration I-B. Possible origins of this intermediate temperature phenomenon are discussed.

Original language	English (US)
Article number	041310
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.85.041310
State	Published - Jan 26 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.85.041310

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title = "Resistivity saturation in a weakly interacting two-dimensional Fermi liquid at intermediate temperatures",

abstract = "We report an unusual temperature dependence in the magnetoresistance of a weakly interacting high mobility 2D electron gas (2DEG) under a parallel magnetic field and in the current configuration I-B. While the linear temperature dependence below 10 K and the exponential temperature dependence above 40 K agree with the existing theory of electron-phonon scattering, a field-induced resistivity saturation behavior characterized by an almost complete suppression of the temperature dependence is observed from approximately 20 to 40 K, which is in sharp contrast to the phenomenology observed in the configuration I-B. Possible origins of this intermediate temperature phenomenon are discussed.",

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T1 - Resistivity saturation in a weakly interacting two-dimensional Fermi liquid at intermediate temperatures

AU - Zhou, Xiaoqing

AU - Schmidt, B.

AU - Engel, L. W.

AU - Gervais, G.

AU - Pfeiffer, L. N.

AU - West, K. W.

AU - Das Sarma, S.

PY - 2012/1/26

Y1 - 2012/1/26

N2 - We report an unusual temperature dependence in the magnetoresistance of a weakly interacting high mobility 2D electron gas (2DEG) under a parallel magnetic field and in the current configuration I-B. While the linear temperature dependence below 10 K and the exponential temperature dependence above 40 K agree with the existing theory of electron-phonon scattering, a field-induced resistivity saturation behavior characterized by an almost complete suppression of the temperature dependence is observed from approximately 20 to 40 K, which is in sharp contrast to the phenomenology observed in the configuration I-B. Possible origins of this intermediate temperature phenomenon are discussed.

AB - We report an unusual temperature dependence in the magnetoresistance of a weakly interacting high mobility 2D electron gas (2DEG) under a parallel magnetic field and in the current configuration I-B. While the linear temperature dependence below 10 K and the exponential temperature dependence above 40 K agree with the existing theory of electron-phonon scattering, a field-induced resistivity saturation behavior characterized by an almost complete suppression of the temperature dependence is observed from approximately 20 to 40 K, which is in sharp contrast to the phenomenology observed in the configuration I-B. Possible origins of this intermediate temperature phenomenon are discussed.

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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ER -

Resistivity saturation in a weakly interacting two-dimensional Fermi liquid at intermediate temperatures

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