Observation of a spin-polarization instability in tilted magnetic fields

S. Koch; R. J. Haug; K. von Klitzing; M. Razeghi

doi:10.1016/0921-4526(93)90324-Y

Observation of a spin-polarization instability in tilted magnetic fields

S. Koch^*, R. J. Haug, K. von Klitzing, M. Razeghi

^*Corresponding author for this work

Electrical and Computer Engineering

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

5 Scopus citations

Abstract

We report evidence for a phase transition between a spin-unpolarized state and a spin-polarized state in a two-dimensional electron gas in tilted magnetic fields. This effect is revealed in the magnetoresistance at mK temperatures, where the coincidence of the spin-resolved Landau levels N = 1 ↑ and N = 0 ↓ completely vanishes in samples of sufficiently high mobility, as predicted in recent theoretical studies. The effect is ascribed to electron-electron interactions.

Original language	English (US)
Pages (from-to)	76-80
Number of pages	5
Journal	Physica B: Physics of Condensed Matter
Volume	184
Issue number	1-4
DOIs	https://doi.org/10.1016/0921-4526(93)90324-Y
State	Published - Feb 1993

ASJC Scopus subject areas

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

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10.1016/0921-4526(93)90324-Y

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title = "Observation of a spin-polarization instability in tilted magnetic fields",

abstract = "We report evidence for a phase transition between a spin-unpolarized state and a spin-polarized state in a two-dimensional electron gas in tilted magnetic fields. This effect is revealed in the magnetoresistance at mK temperatures, where the coincidence of the spin-resolved Landau levels N = 1 ↑ and N = 0 ↓ completely vanishes in samples of sufficiently high mobility, as predicted in recent theoretical studies. The effect is ascribed to electron-electron interactions.",

author = "S. Koch and Haug, {R. J.} and {von Klitzing}, K. and M. Razeghi",

year = "1993",

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doi = "10.1016/0921-4526(93)90324-Y",

language = "English (US)",

volume = "184",

pages = "76--80",

journal = "Physica B: Physics of Condensed Matter",

issn = "0921-4526",

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T1 - Observation of a spin-polarization instability in tilted magnetic fields

AU - Koch, S.

AU - Haug, R. J.

AU - von Klitzing, K.

AU - Razeghi, M.

PY - 1993/2

Y1 - 1993/2

N2 - We report evidence for a phase transition between a spin-unpolarized state and a spin-polarized state in a two-dimensional electron gas in tilted magnetic fields. This effect is revealed in the magnetoresistance at mK temperatures, where the coincidence of the spin-resolved Landau levels N = 1 ↑ and N = 0 ↓ completely vanishes in samples of sufficiently high mobility, as predicted in recent theoretical studies. The effect is ascribed to electron-electron interactions.

AB - We report evidence for a phase transition between a spin-unpolarized state and a spin-polarized state in a two-dimensional electron gas in tilted magnetic fields. This effect is revealed in the magnetoresistance at mK temperatures, where the coincidence of the spin-resolved Landau levels N = 1 ↑ and N = 0 ↓ completely vanishes in samples of sufficiently high mobility, as predicted in recent theoretical studies. The effect is ascribed to electron-electron interactions.

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U2 - 10.1016/0921-4526(93)90324-Y

DO - 10.1016/0921-4526(93)90324-Y

M3 - Article

AN - SCOPUS:0027544203

SN - 0921-4526

VL - 184

SP - 76

EP - 80

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - 1-4

ER -

Observation of a spin-polarization instability in tilted magnetic fields

Abstract

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