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Charge Density Waves in Layered Compounds

Klipstein, P. C.

The Transition Metal Dichalcogenide compounds (eg. TaS₂) have a layered structure where each layer consists of a hexagonally packed plane of metal atoms sandwiched between two of chalcogen atoms [1]. In the metallic compounds, the Fermi surface consists of cylindrical electron or hole pockets with axes perpendicular to the layer [2]. This “two-dimensional” electronic character leads in most cases to a Periodic Lattice Distortion (PLD) below some temperature T_d [3]. The distortion is screened by the electron gas, giving rise to an associated Charge Density Wave (CDW).

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Charge Density Waves in Layered Compounds

Klipstein, P. C.

The Transition Metal Dichalcogenide compounds (eg. TaS₂) have a layered structure where each layer consists of a hexagonally packed plane of metal atoms sandwiched between two of chalcogen atoms [1]. In the metallic compounds, the Fermi surface consists of cylindrical electron or hole pockets with axes perpendicular to the layer [2]. This “two-dimensional” electronic character leads in most cases to a Periodic Lattice Distortion (PLD) below some temperature T_d [3]. The distortion is screened by the electron gas, giving rise to an associated Charge Density Wave (CDW).

Charge Density Waves in Layered Compounds

Klipstein, P. C.

The Transition Metal Dichalcogenide compounds (eg. TaS₂) have a layered structure where each layer consists of a hexagonally packed plane of metal atoms sandwiched between two of chalcogen atoms [1]. In the metallic compounds, the Fermi surface consists of cylindrical electron or hole pockets with axes perpendicular to the layer [2]. This “two-dimensional” electronic character leads in most cases to a Periodic Lattice Distortion (PLD) below some temperature T_d [3]. The distortion is screened by the electron gas, giving rise to an associated Charge Density Wave (CDW).

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Title:

Charge Density Waves in Layered Compounds

Contributors:

Nizzoli, Fabrizio (editor) / Rieder, Karl-Heinz (editor) / Willis, Roy F. (editor) / Klipstein, P. C. (author)

Published in:

Dynamical Phenomena at Surfaces, Interfaces and Superlattices ; Chapter: 17 ; 157-158

Springer Series in Surface Sciences ; 3

Publication date:

1985-01-01

Size:

2 pages

ISBN:

978-3-642-82535-4 , 978-3-642-82537-8

ISSN:

DOI:

https://doi.org/10.1007/978-3-642-82535-4_17

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Fermi Surface , Layered Compound , Charge Density Wave , Packed Plane , Chalcogen Atom Physics , Surface and Interface Science, Thin Films , Surfaces and Interfaces, Thin Films , Physics and Astronomy

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