Surface acoustic wave wavelength and temperature dependence of the induced periodic density modulation effect at v = 1/2

R. L. Willett; L. N. Pfeiffer; K. W. West

doi:10.1016/S0921-4526(98)00682-6

Surface acoustic wave wavelength and temperature dependence of the induced periodic density modulation effect at v = 1/2

R. L. Willett, L. N. Pfeiffer, K. W. West

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

1 Scopus citations

Abstract

The effects of a tunable periodic density modulation imposed upon a 2D electron system have been probed using surface acoustic waves. A substantial effect is induced at filling factor 1/2 in which the Fermi surface properties of the composite fermion are anisotropically replaced by features similar to those seen in quantum Hall states. The response measured using different SAW wavelengths and similarities in the temperature dependence between the modulation induced features at 1/2 and quantum Hall states are described.

Original language	English (US)
Pages (from-to)	215-219
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	256-258
DOIs	https://doi.org/10.1016/S0921-4526(98)00682-6
State	Published - Dec 2 1998
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Keywords

Composite fermions
Quantum Hall effect
Surface acoustic waves

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10.1016/S0921-4526(98)00682-6

Cite this

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abstract = "The effects of a tunable periodic density modulation imposed upon a 2D electron system have been probed using surface acoustic waves. A substantial effect is induced at filling factor 1/2 in which the Fermi surface properties of the composite fermion are anisotropically replaced by features similar to those seen in quantum Hall states. The response measured using different SAW wavelengths and similarities in the temperature dependence between the modulation induced features at 1/2 and quantum Hall states are described.",

keywords = "Composite fermions, Quantum Hall effect, Surface acoustic waves",

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year = "1998",

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language = "English (US)",

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pages = "215--219",

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T1 - Surface acoustic wave wavelength and temperature dependence of the induced periodic density modulation effect at v = 1/2

AU - Willett, R. L.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1998/12/2

Y1 - 1998/12/2

N2 - The effects of a tunable periodic density modulation imposed upon a 2D electron system have been probed using surface acoustic waves. A substantial effect is induced at filling factor 1/2 in which the Fermi surface properties of the composite fermion are anisotropically replaced by features similar to those seen in quantum Hall states. The response measured using different SAW wavelengths and similarities in the temperature dependence between the modulation induced features at 1/2 and quantum Hall states are described.

AB - The effects of a tunable periodic density modulation imposed upon a 2D electron system have been probed using surface acoustic waves. A substantial effect is induced at filling factor 1/2 in which the Fermi surface properties of the composite fermion are anisotropically replaced by features similar to those seen in quantum Hall states. The response measured using different SAW wavelengths and similarities in the temperature dependence between the modulation induced features at 1/2 and quantum Hall states are described.

KW - Composite fermions

KW - Quantum Hall effect

KW - Surface acoustic waves

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U2 - 10.1016/S0921-4526(98)00682-6

DO - 10.1016/S0921-4526(98)00682-6

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SN - 0921-4526

VL - 256-258

SP - 215

EP - 219

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Surface acoustic wave wavelength and temperature dependence of the induced periodic density modulation effect at v = 1/2

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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