A spin current perpendicular to the electric current is investigated around a Landau level filling factor nu=3 in a GaAs/AlGaAs two-dimensional electron system. Measurements of dynamic nuclear polarization in the vicinity of the edge of a specially designed Hall bar sample indicate that the direction of the spin current with respect to the Hall electric field reverses its polarity at nu=3, where the dissipative current carried by holes in the spin up Landau level is replaced with that by electrons in the spin down Landau level.
Ettingshausen effect around a Landau level filling factor nu = 3 studied by dynamic nuclear polarization. Publishing Authors By Initials
Ettingshausen effect around a Landau level filling factor nu = 3 studied by dynamic nuclear polarization. Journal Published:
PUBLICATION TYPE: Research Support, Non-U.S. Gov
Journal: Physical review letters
VOLUME: 99
Page Numbers: 146807
Journal Abbreviation: Phys. Rev. Lett.
ISSN: 0031-9007
DAY: 5
MONTH: 10
YEAR: 2007
Ettingshausen effect around a Landau level filling factor nu = 3 studied by dynamic nuclear polarization. Information
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LANGUAGE: eng
NlmUniqueID: 401141
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AFFILIATION: Department of Physics, University of Tokyo, 7-3-1 Hongo, Tokyo, Japan.
Country: United States
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MEDLINETA: Phys Rev Lett
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