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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2011, Volume 94, Issue 4, Pages 343–347
(Mi jetpl2002)
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This article is cited in 2 scientific papers (total in 2 papers)
CONDENSED MATTER
Spin polarization of the current in a correlated one-dimensional conductor with an impurity
S. N. Artemenkoab, R. R. Vakhitovab, S. V. Remizovab a Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences
b Moscow Institute of Physics and Technology
Abstract:
The spin transport as the current flows through an impurity in a one-dimensional conductor is analyzed. The interacting electrons are described in terms of the Luttinger liquid theory. Both the Coulomb and short-range interactions are considered; the latter appears when the gate screens the long-range part of the Coulomb potential. The cases of magnetic and nonmagnetic impurities are considered. It has been revealed that, for a magnetic impurity, the electric current flow induces the generation of the spin current, which has direct and alternating components. At low temperatures and voltages, the current can be completely spin-polarized. For a nonmagnetic impurity, the spin current generation is absent. The spin current flowing though the wire affects the current-voltage characteristic for both magnetic and nonmagnetic impurities. The results have been obtained for a rather strong electron-electron interaction.
Received: 06.07.2011
Citation:
S. N. Artemenko, R. R. Vakhitov, S. V. Remizov, “Spin polarization of the current in a correlated one-dimensional conductor with an impurity”, Pis'ma v Zh. Èksper. Teoret. Fiz., 94:4 (2011), 343–347; JETP Letters, 94:4 (2011), 319–323
Linking options:
https://www.mathnet.ru/eng/jetpl2002 https://www.mathnet.ru/eng/jetpl/v94/i4/p343
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