a.c. Conductivity of nearly commensurate charge density waves and application to NbSe3 and TaS3

B. Horovitz; S. E. Trullinger

doi:10.1016/0038-1098(84)90794-4

a.c. Conductivity of nearly commensurate charge density waves and application to NbSe₃ and TaS₃

B. Horovitz, S. E. Trullinger

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14 Scopus citations

Abstract

The a.c. conductivity of an overdamped one dimensional sine-Gordon system with a low density of kinks is evaluated. This corresponds to a nearly commensurate charge or spin density wave with a kink-lattice representing the deviation from commensurability. The results explain the unusually broad crossover regime of NbSe₃ as compared with the similar but more commensurate compound TaS₃. When TaS₃ becomes commensurate (T {less-than or approximate} 130 K) we predict that its a.c. response increases and its shape slightly sharpens.

Original language	English
Pages (from-to)	195-199
Number of pages	5
Journal	Solid State Communications
Volume	49
Issue number	2
DOIs	https://doi.org/10.1016/0038-1098(84)90794-4
State	Published - 1 Jan 1984
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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AU - Horovitz, B.

AU - Trullinger, S. E.

PY - 1984/1/1

Y1 - 1984/1/1

N2 - The a.c. conductivity of an overdamped one dimensional sine-Gordon system with a low density of kinks is evaluated. This corresponds to a nearly commensurate charge or spin density wave with a kink-lattice representing the deviation from commensurability. The results explain the unusually broad crossover regime of NbSe3 as compared with the similar but more commensurate compound TaS3. When TaS3 becomes commensurate (T {less-than or approximate} 130 K) we predict that its a.c. response increases and its shape slightly sharpens.

AB - The a.c. conductivity of an overdamped one dimensional sine-Gordon system with a low density of kinks is evaluated. This corresponds to a nearly commensurate charge or spin density wave with a kink-lattice representing the deviation from commensurability. The results explain the unusually broad crossover regime of NbSe3 as compared with the similar but more commensurate compound TaS3. When TaS3 becomes commensurate (T {less-than or approximate} 130 K) we predict that its a.c. response increases and its shape slightly sharpens.

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ER -

a.c. Conductivity of nearly commensurate charge density waves and application to NbSe₃ and TaS₃

Abstract

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