Universal behaviour of the thermoelectric power of composite fermions

B. Tieke; U. Zeitler; R. Fletcher; S. A J Wiegers; A. K. Geim; J. C. Maan; M. Henini

doi:10.1016/0039-6028(96)00327-5

Universal behaviour of the thermoelectric power of composite fermions

B. Tieke, U. Zeitler, R. Fletcher, S. A J Wiegers, A. K. Geim, J. C. Maan, M. Henini

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

Abstract

The thermopowers of high-mobility two-dimensional electron gases at even denominator filling factors ν are found to be remarkably similar to each other and also to the thermopower at zero magnetic field. The magnitudes at ν = 1/2 and ν = 3/2 are identical, regardless of temperature and electron density. This also appears to be true at ν = 1/4 and ν = 3/4, with the magnitude of this pair being about two times larger than for the former pair. These results are interpreted in terms of the "zero field" phonon drag thermopower of composite fermions.

Original language	English
Pages (from-to)	46-49
Number of pages	3
Journal	Surface Science
Volume	361-362
DOIs	https://doi.org/10.1016/0039-6028(96)00327-5
Publication status	Published - 20 Jul 1996

Keywords

Electrical transport measurements
Gallium arsenide
Heterojunctions
Quantum effects
Semiconductor-semiconductor heterostructures

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10.1016/0039-6028(96)00327-5

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title = "Universal behaviour of the thermoelectric power of composite fermions",

abstract = "The thermopowers of high-mobility two-dimensional electron gases at even denominator filling factors ν are found to be remarkably similar to each other and also to the thermopower at zero magnetic field. The magnitudes at ν = 1/2 and ν = 3/2 are identical, regardless of temperature and electron density. This also appears to be true at ν = 1/4 and ν = 3/4, with the magnitude of this pair being about two times larger than for the former pair. These results are interpreted in terms of the {"}zero field{"} phonon drag thermopower of composite fermions.",

keywords = "Electrical transport measurements, Gallium arsenide, Heterojunctions, Quantum effects, Semiconductor-semiconductor heterostructures",

author = "B. Tieke and U. Zeitler and R. Fletcher and Wiegers, {S. A J} and Geim, {A. K.} and Maan, {J. C.} and M. Henini",

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doi = "10.1016/0039-6028(96)00327-5",

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TY - JOUR

T1 - Universal behaviour of the thermoelectric power of composite fermions

AU - Tieke, B.

AU - Zeitler, U.

AU - Fletcher, R.

AU - Wiegers, S. A J

AU - Geim, A. K.

AU - Maan, J. C.

AU - Henini, M.

N1 - Uz033 Times Cited:0 Cited References Count:10

PY - 1996/7/20

Y1 - 1996/7/20

N2 - The thermopowers of high-mobility two-dimensional electron gases at even denominator filling factors ν are found to be remarkably similar to each other and also to the thermopower at zero magnetic field. The magnitudes at ν = 1/2 and ν = 3/2 are identical, regardless of temperature and electron density. This also appears to be true at ν = 1/4 and ν = 3/4, with the magnitude of this pair being about two times larger than for the former pair. These results are interpreted in terms of the "zero field" phonon drag thermopower of composite fermions.

AB - The thermopowers of high-mobility two-dimensional electron gases at even denominator filling factors ν are found to be remarkably similar to each other and also to the thermopower at zero magnetic field. The magnitudes at ν = 1/2 and ν = 3/2 are identical, regardless of temperature and electron density. This also appears to be true at ν = 1/4 and ν = 3/4, with the magnitude of this pair being about two times larger than for the former pair. These results are interpreted in terms of the "zero field" phonon drag thermopower of composite fermions.

KW - Electrical transport measurements

KW - Gallium arsenide

KW - Heterojunctions

KW - Quantum effects

KW - Semiconductor-semiconductor heterostructures

U2 - 10.1016/0039-6028(96)00327-5

DO - 10.1016/0039-6028(96)00327-5

M3 - Article

SN - 0039-6028

VL - 361-362

SP - 46

EP - 49

JO - Surface Science

JF - Surface Science

ER -

Universal behaviour of the thermoelectric power of composite fermions

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Keywords

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