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Normal state electrodynamic properties of charge- and spin-density-wave compounds

Schwartz, A. ; Donovan, S. ; Dressel, M. ; Degiorgi, L. ; Grüner, G.

Synthetic metals, 1997-02, Vol.86 (1), p.2129-2130 [Periódico revisado por pares]

Lausanne: Elsevier B.V

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Título:
Normal state electrodynamic properties of charge- and spin-density-wave compounds
Autor: Schwartz, A. ; Donovan, S. ; Dressel, M. ; Degiorgi, L. ; Grüner, G.
Assuntos: Charge-density-wave systems ; charge-density-wave transition ; Collective effects ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Electron states ; Exact sciences and technology ; fluctuations ; Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity) ; Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity ; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation ; Optical properties of bulk materials and thin films ; organic conductors ; Physics ; spin-density-wave transition
É parte de: Synthetic metals, 1997-02, Vol.86 (1), p.2129-2130
Descrição: We have examined the normal state ( T > T c) optical properties (1–10 5 cm −1) of low dimensional conductors which exhibit both charge- and spin-density-wave ground states and have found important deviations from simple metallic behavior, especially at low frequencies. In addition to a pseudogap, the optical response parallel to the conducting chains of the charge-density-wave (CDW) compound (TaSe 4) 2I ( T c = 263 K) shows an enhanced low frequency conductivity which can be described quantitatively as the contribution from fluctuating CDW segments. Similarly, we will present optical measurements performed on the model spin-density-wave (SDW) compound (TMTSF) 2PF 6 ( T c = 12.1 K). In the metallic state just above T c, the optical conductivity parallel to the conducting chains has two distinct temperature dependent features: a zero frequency response and a finite energy absorption.
Editor: Lausanne: Elsevier B.V
Idioma: Inglês

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Normal state electrodynamic properties of charge- and spin-density-wave compounds

Schwartz, A. ; Donovan, S. ; Dressel, M. ; Degiorgi, L. ; Grüner, G.

Lausanne: Elsevier B.V

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