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.
| Original language | English |
|---|---|
| Pages (from-to) | 319-323 |
| Number of pages | 5 |
| Journal | JETP Letters |
| Volume | 94 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Oct 2011 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Spin polarization of the current in a correlated one-dimensional conductor with an impurity. / Artemenko, S. N.; Vakhitov, R. R.; Remizov, S. V.
In: JETP Letters, Vol. 94, No. 4, 01.10.2011, p. 319-323.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Spin polarization of the current in a correlated one-dimensional conductor with an impurity
AU - Artemenko, S. N.
AU - Vakhitov, R. R.
AU - Remizov, S. V.
PY - 2011/10/1
Y1 - 2011/10/1
N2 - 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.
AB - 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.
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U2 - 10.1134/S0021364011160028
DO - 10.1134/S0021364011160028
M3 - Article
VL - 94
SP - 319
EP - 323
JO - JETP Letters
JF - JETP Letters
SN - 0021-3640
IS - 4
ER -