Hopping conduction in the Landau level tails in GaAs-AlxGa1-xAs heterostructures at low temperatures

G. Ebert; K. von Klitzing; C. Probst; E. Schuberth; K. Ploog; G. Weimann

doi:10.1016/0038-1098(83)90441-6

Hopping conduction in the Landau level tails in GaAs-Al_xGa_1-xAs heterostructures at low temperatures

G. Ebert, K. von Klitzing, C. Probst, E. Schuberth, K. Ploog, G. Weimann

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107 Scopus citations

Abstract

We have investigated the temperature dependence of the transverse conductivity σ_xx in the two-dimensional Shubnikov-de Haas oscillation minima in GaAs-Al_xGa_1-xAs heterostructures at temperatures between 10mK and 1 K. We found that for σ_xx ≪ σ_xx (max), where σ_xx (max) is the conductivity in the corresponding oscillation maxima, the results agree qualitatively with a theory recently published by Ono, predicting σ_xx ∝ (1/T) exp - (T₀/T)^{1 2}, but are not consistent with the estimated T₀-values.

Original language	English
Pages (from-to)	625-628
Number of pages	4
Journal	Solid State Communications
Volume	45
Issue number	7
DOIs	https://doi.org/10.1016/0038-1098(83)90441-6
State	Published - Feb 1983
Externally published	Yes

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@article{dc0d6908c3ef4ed8b22db9813060354f,

title = "Hopping conduction in the Landau level tails in GaAs-AlxGa1-xAs heterostructures at low temperatures",

abstract = "We have investigated the temperature dependence of the transverse conductivity σxx in the two-dimensional Shubnikov-de Haas oscillation minima in GaAs-AlxGa1-xAs heterostructures at temperatures between 10mK and 1 K. We found that for σxx ≪ σxx (max), where σxx (max) is the conductivity in the corresponding oscillation maxima, the results agree qualitatively with a theory recently published by Ono, predicting σxx ∝ (1/T) exp - (T0/T) 1 2, but are not consistent with the estimated T0-values.",

author = "G. Ebert and {von Klitzing}, K. and C. Probst and E. Schuberth and K. Ploog and G. Weimann",

year = "1983",

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doi = "10.1016/0038-1098(83)90441-6",

language = "English",

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pages = "625--628",

journal = "Solid State Communications",

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TY - JOUR

T1 - Hopping conduction in the Landau level tails in GaAs-AlxGa1-xAs heterostructures at low temperatures

AU - Ebert, G.

AU - von Klitzing, K.

AU - Probst, C.

AU - Schuberth, E.

AU - Ploog, K.

AU - Weimann, G.

PY - 1983/2

Y1 - 1983/2

N2 - We have investigated the temperature dependence of the transverse conductivity σxx in the two-dimensional Shubnikov-de Haas oscillation minima in GaAs-AlxGa1-xAs heterostructures at temperatures between 10mK and 1 K. We found that for σxx ≪ σxx (max), where σxx (max) is the conductivity in the corresponding oscillation maxima, the results agree qualitatively with a theory recently published by Ono, predicting σxx ∝ (1/T) exp - (T0/T) 1 2, but are not consistent with the estimated T0-values.

AB - We have investigated the temperature dependence of the transverse conductivity σxx in the two-dimensional Shubnikov-de Haas oscillation minima in GaAs-AlxGa1-xAs heterostructures at temperatures between 10mK and 1 K. We found that for σxx ≪ σxx (max), where σxx (max) is the conductivity in the corresponding oscillation maxima, the results agree qualitatively with a theory recently published by Ono, predicting σxx ∝ (1/T) exp - (T0/T) 1 2, but are not consistent with the estimated T0-values.

UR - http://www.scopus.com/inward/record.url?scp=0020705211&partnerID=8YFLogxK

U2 - 10.1016/0038-1098(83)90441-6

DO - 10.1016/0038-1098(83)90441-6

M3 - Article

AN - SCOPUS:0020705211

SN - 0038-1098

VL - 45

SP - 625

EP - 628

JO - Solid State Communications

JF - Solid State Communications

IS - 7

ER -

Hopping conduction in the Landau level tails in GaAs-Al_xGa_1-xAs heterostructures at low temperatures

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