Strongly anisotropic electronic transport in higher Landau levels

R. R. Du; W. Pan; H. L. Stormer; D. C. Tsui; L. N. Pfeiffer; K. W. Baldwin; K. W. West

doi:10.1016/S1386-9477(99)00093-4

Strongly anisotropic electronic transport in higher Landau levels

R. R. Du, W. Pan, H. L. Stormer, D. C. Tsui, L. N. Pfeiffer, K. W. Baldwin, K. W. West

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

Low-temperature, electronic transport in higher Landau levels (N>1) in a two-dimensional electron system is strongly anisotropic. At half-filling of either spin level of such Landau levels (v = 9/2, 11/2, 13/2, 15/2, etc.) the magnetoresistance either collapses to form a deep minimum or is peaked in a sharp maximum, depending on the in-plane current direction. The anisotropic axis can be reoriented by applying an in-plane magnetic field of approximately 1-2 T strength. The magnetoresistance at v = 5/2 and v = 7/2 (N = 1) is initially isotropic but an in-plane field induces a strong anisotropy. Our observations are strong evidence for a new many-electron phase in higher Landau levels, which forms spontaneously or can be induced by an in-plane field.

Original language	English (US)
Pages (from-to)	36-39
Number of pages	4
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	6
Issue number	1
DOIs	https://doi.org/10.1016/S1386-9477(99)00093-4
State	Published - Feb 2000
Externally published	Yes
Event	13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) - Ottawa, Ont, Can Duration: Aug 1 1999 → Aug 6 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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10.1016/S1386-9477(99)00093-4

Cite this

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title = "Strongly anisotropic electronic transport in higher Landau levels",

abstract = "Low-temperature, electronic transport in higher Landau levels (N>1) in a two-dimensional electron system is strongly anisotropic. At half-filling of either spin level of such Landau levels (v = 9/2, 11/2, 13/2, 15/2, etc.) the magnetoresistance either collapses to form a deep minimum or is peaked in a sharp maximum, depending on the in-plane current direction. The anisotropic axis can be reoriented by applying an in-plane magnetic field of approximately 1-2 T strength. The magnetoresistance at v = 5/2 and v = 7/2 (N = 1) is initially isotropic but an in-plane field induces a strong anisotropy. Our observations are strong evidence for a new many-electron phase in higher Landau levels, which forms spontaneously or can be induced by an in-plane field.",

author = "Du, {R. R.} and W. Pan and Stormer, {H. L.} and Tsui, {D. C.} and Pfeiffer, {L. N.} and Baldwin, {K. W.} and West, {K. W.}",

year = "2000",

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doi = "10.1016/S1386-9477(99)00093-4",

language = "English (US)",

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journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

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number = "1",

note = "13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13) ; Conference date: 01-08-1999 Through 06-08-1999",

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TY - JOUR

T1 - Strongly anisotropic electronic transport in higher Landau levels

AU - Du, R. R.

AU - Pan, W.

AU - Stormer, H. L.

AU - Tsui, D. C.

AU - Pfeiffer, L. N.

AU - Baldwin, K. W.

AU - West, K. W.

PY - 2000/2

Y1 - 2000/2

N2 - Low-temperature, electronic transport in higher Landau levels (N>1) in a two-dimensional electron system is strongly anisotropic. At half-filling of either spin level of such Landau levels (v = 9/2, 11/2, 13/2, 15/2, etc.) the magnetoresistance either collapses to form a deep minimum or is peaked in a sharp maximum, depending on the in-plane current direction. The anisotropic axis can be reoriented by applying an in-plane magnetic field of approximately 1-2 T strength. The magnetoresistance at v = 5/2 and v = 7/2 (N = 1) is initially isotropic but an in-plane field induces a strong anisotropy. Our observations are strong evidence for a new many-electron phase in higher Landau levels, which forms spontaneously or can be induced by an in-plane field.

AB - Low-temperature, electronic transport in higher Landau levels (N>1) in a two-dimensional electron system is strongly anisotropic. At half-filling of either spin level of such Landau levels (v = 9/2, 11/2, 13/2, 15/2, etc.) the magnetoresistance either collapses to form a deep minimum or is peaked in a sharp maximum, depending on the in-plane current direction. The anisotropic axis can be reoriented by applying an in-plane magnetic field of approximately 1-2 T strength. The magnetoresistance at v = 5/2 and v = 7/2 (N = 1) is initially isotropic but an in-plane field induces a strong anisotropy. Our observations are strong evidence for a new many-electron phase in higher Landau levels, which forms spontaneously or can be induced by an in-plane field.

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U2 - 10.1016/S1386-9477(99)00093-4

DO - 10.1016/S1386-9477(99)00093-4

M3 - Conference article

AN - SCOPUS:0034138813

SN - 1386-9477

VL - 6

SP - 36

EP - 39

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1

T2 - 13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13)

Y2 - 1 August 1999 through 6 August 1999

ER -

Strongly anisotropic electronic transport in higher Landau levels

Abstract

All Science Journal Classification (ASJC) codes

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