Abstract
We study theoretically transport properties of one-dimensional system of interacting electrons pinned by an impurity. Long-range Coulomb interaction in such a system is known to induce a 4 kF electron density modulation characterized by extremely slow, slower than any power law, decay of the density correlations which can be described as a one-dimensional Wigner crystal. We study non-stationary regime of conduction corresponding to sliding of the 1D Wigner crystal depinned by the applied voltage. In this regime the dc current is accompanied by current oscillations with frequency f=Ī/e. We calculate I-V curves and ac current generated by sliding. Our approach is based on the ideas of Luttinger liquid. We study also the case of magnetic impurity and show that applied voltage induces not only the electrical current, but also the spin current as well, in other words, the current becomes spin polarized. We find that a spin bias applied to the system contributes to electric current both in case of magnetic and non-magnetic impurity, and this is related to violation of the spin-charge separation at the impurity site.
| Original language | English |
|---|---|
| Pages (from-to) | 1894-1897 |
| Number of pages | 4 |
| Journal | Physica B: Condensed Matter |
| Volume | 407 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1 Jun 2012 |
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Keywords
- Conduction
- One-dimensional interacting electrons
- Pinning
ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
Cite this
Sliding regime of conduction in one-dimensional Wigner crystal. / Artemenko, S. N.; Shapiro, D. S.; Vakhitov, R. R.; Remizov, S. V.
In: Physica B: Condensed Matter, Vol. 407, No. 11, 01.06.2012, p. 1894-1897.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Sliding regime of conduction in one-dimensional Wigner crystal
AU - Artemenko, S. N.
AU - Shapiro, D. S.
AU - Vakhitov, R. R.
AU - Remizov, S. V.
PY - 2012/6/1
Y1 - 2012/6/1
N2 - We study theoretically transport properties of one-dimensional system of interacting electrons pinned by an impurity. Long-range Coulomb interaction in such a system is known to induce a 4 kF electron density modulation characterized by extremely slow, slower than any power law, decay of the density correlations which can be described as a one-dimensional Wigner crystal. We study non-stationary regime of conduction corresponding to sliding of the 1D Wigner crystal depinned by the applied voltage. In this regime the dc current is accompanied by current oscillations with frequency f=Ī/e. We calculate I-V curves and ac current generated by sliding. Our approach is based on the ideas of Luttinger liquid. We study also the case of magnetic impurity and show that applied voltage induces not only the electrical current, but also the spin current as well, in other words, the current becomes spin polarized. We find that a spin bias applied to the system contributes to electric current both in case of magnetic and non-magnetic impurity, and this is related to violation of the spin-charge separation at the impurity site.
AB - We study theoretically transport properties of one-dimensional system of interacting electrons pinned by an impurity. Long-range Coulomb interaction in such a system is known to induce a 4 kF electron density modulation characterized by extremely slow, slower than any power law, decay of the density correlations which can be described as a one-dimensional Wigner crystal. We study non-stationary regime of conduction corresponding to sliding of the 1D Wigner crystal depinned by the applied voltage. In this regime the dc current is accompanied by current oscillations with frequency f=Ī/e. We calculate I-V curves and ac current generated by sliding. Our approach is based on the ideas of Luttinger liquid. We study also the case of magnetic impurity and show that applied voltage induces not only the electrical current, but also the spin current as well, in other words, the current becomes spin polarized. We find that a spin bias applied to the system contributes to electric current both in case of magnetic and non-magnetic impurity, and this is related to violation of the spin-charge separation at the impurity site.
KW - Conduction
KW - One-dimensional interacting electrons
KW - Pinning
UR - http://www.scopus.com/inward/record.url?scp=84859549387&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859549387&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2012.01.057
DO - 10.1016/j.physb.2012.01.057
M3 - Article
AN - SCOPUS:84859549387
VL - 407
SP - 1894
EP - 1897
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 11
ER -