Chemical pressure and hidden one-dimensional behavior in rare-earth tri-telluride charge-density wave compounds

Sacchetti, A.; Degiorgi, L.; Giamarchi, Thierry; Ru, N.; Fisher, I. R.

doi:10.1103/PhysRevB.74.125115

Scientific article

English

Chemical pressure and hidden one-dimensional behavior in rare-earth tri-telluride charge-density wave compounds

Contributors

Sacchetti, A.; Degiorgi, L.; Giamarchi, Thierry; Ru, N.; Fisher, I. R.

Published in

Physical review. B, Condensed matter and materials physics, vol. 74, no. 12

Publication date

2006

Abstract

We report on the first optical measurements of the rare-earth tri-telluride charge-density wave systems. Our data, collected over an extremely broad spectral range, allow us to observe both the Drude component and the single-particle peak, ascribed to the contributions due to the free charge carriers and to the charge-density wave gap excitation, respectively. The data analysis displays a diminishing impact of the charge-density wave condensate on the electronic properties with decreasing lattice constant across the rare-earth series. We propose a possible mechanism describing this behavior and we suggest the presence of a one-dimensional character in these two-dimensional compounds. We also envisage that interactions and umklapp processes might play a relevant role in the formation of the charge-density wave state in these compounds.

UNIGE affiliation entities

Faculté des sciences / Section de physique / Département de physique de la matière quantique

UNIGE research groups

Groupe Giamarchi

Citation (ISO format)

SACCHETTI, A. et al. Chemical pressure and hidden one-dimensional behavior in rare-earth tri-telluride charge-density wave compounds. In: Physical review. B, Condensed matter and materials physics, 2006, vol. 74, n° 12. doi: 10.1103/PhysRevB.74.125115

Article (Published version)

Identifiers

PID : unige:36077
DOI : 10.1103/PhysRevB.74.125115

Journal ISSN

1098-0121

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28/04/2014 16:16:00

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28/04/2014 16:16:00

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14/03/2023 21:10:01

Status update

14/03/2023 21:10:01

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30/10/2024 17:00:52

Chemical pressure and hidden one-dimensional behavior in rare-earth tri-telluride charge-density wave compounds

Contributors

Published in

Publication date

Abstract

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

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Creation

First validation

Update

Status update

Last indexation