Abstract
We study theoretically two effects related to impurity depinning that are common for 1D Luttinger liquid (LL) and linear-chain charge-density wave (CDW) conductors. First, we consider the electron transport through a single impurity in a 1D conducting channel and study a new regime of conduction related to LL sliding at voltage above a threshold one. The DC current in this regime is accompanied by oscillations with frequency f = I / e. This resembles the CDW depinning in linear-chain conductors, the Josephson effect, and the Coulomb blockade. Second, we found that strong pinning of the LL by impurities leads to a magnetic field dependence of the low-temperature specific heat similar to that observed experimentally in CDW compounds. We interpret this in favor of possibility of formation of the LL in linear-chain compounds.
| Original language | English |
|---|---|
| Pages (from-to) | 447-451 |
| Number of pages | 5 |
| Journal | Physica B: Condensed Matter |
| Volume | 404 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 13 Jan 2009 |
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Keywords
- Conduction
- Heat capacity
- Impurity
- Luttinger liquid
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Effect of impurity pinning on conduction and specific heat in the Luttinger liquid. / Artemenko, S. N.; Remizov, S. V.; Shapiro, D. S.; Vakhitov, R. R.
In: Physica B: Condensed Matter, Vol. 404, No. 3-4, 13.01.2009, p. 447-451.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of impurity pinning on conduction and specific heat in the Luttinger liquid
AU - Artemenko, S. N.
AU - Remizov, S. V.
AU - Shapiro, D. S.
AU - Vakhitov, R. R.
PY - 2009/1/13
Y1 - 2009/1/13
N2 - We study theoretically two effects related to impurity depinning that are common for 1D Luttinger liquid (LL) and linear-chain charge-density wave (CDW) conductors. First, we consider the electron transport through a single impurity in a 1D conducting channel and study a new regime of conduction related to LL sliding at voltage above a threshold one. The DC current in this regime is accompanied by oscillations with frequency f = I / e. This resembles the CDW depinning in linear-chain conductors, the Josephson effect, and the Coulomb blockade. Second, we found that strong pinning of the LL by impurities leads to a magnetic field dependence of the low-temperature specific heat similar to that observed experimentally in CDW compounds. We interpret this in favor of possibility of formation of the LL in linear-chain compounds.
AB - We study theoretically two effects related to impurity depinning that are common for 1D Luttinger liquid (LL) and linear-chain charge-density wave (CDW) conductors. First, we consider the electron transport through a single impurity in a 1D conducting channel and study a new regime of conduction related to LL sliding at voltage above a threshold one. The DC current in this regime is accompanied by oscillations with frequency f = I / e. This resembles the CDW depinning in linear-chain conductors, the Josephson effect, and the Coulomb blockade. Second, we found that strong pinning of the LL by impurities leads to a magnetic field dependence of the low-temperature specific heat similar to that observed experimentally in CDW compounds. We interpret this in favor of possibility of formation of the LL in linear-chain compounds.
KW - Conduction
KW - Heat capacity
KW - Impurity
KW - Luttinger liquid
UR - http://www.scopus.com/inward/record.url?scp=59649125549&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=59649125549&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2008.11.091
DO - 10.1016/j.physb.2008.11.091
M3 - Article
VL - 404
SP - 447
EP - 451
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 3-4
ER -