The electrodynamic response of K3C60 and Rb3C60 single crystals

L. Degiorgi; G. Briceno; M. S. Fuhrer; A. Zettl; P. Wachter; E. J. Nicol

doi:10.1016/0379-6779(94)02866-W

The electrodynamic response of K₃C₆₀ and Rb₃C₆₀ single crystals

L. Degiorgi, G. Briceno, M. S. Fuhrer, A. Zettl, P. Wachter, E. J. Nicol

Research output: Contribution to journal › Article › Research › peer-review

5 Citations (Scopus)

Abstract

We present the optical response of K₃C₆₀ and Rb₃C₆₀ single crystals in their normal and superconducting phase. Above T_c the optical conductivity is characterized by two components: a Drude one due to the free charge carriers and a mid-infrared absorption. Below T_c the data clearly indicates a superconducting gap in agreement with the weak coupling limit of the BCS theory, suggesting furthermore that high frequency intramolecular phonon modes are relevant for the pairing mechanism.

Original language	English
Pages (from-to)	1325-1327
Number of pages	3
Journal	Synthetic Metals
Volume	70
Issue number	1-3
DOIs	https://doi.org/10.1016/0379-6779(94)02866-W
Publication status	Published - 15 Mar 1995
Externally published	Yes

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10.1016/0379-6779(94)02866-W

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Cite this

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abstract = "We present the optical response of K3C60 and Rb3C60 single crystals in their normal and superconducting phase. Above Tc the optical conductivity is characterized by two components: a Drude one due to the free charge carriers and a mid-infrared absorption. Below Tc the data clearly indicates a superconducting gap in agreement with the weak coupling limit of the BCS theory, suggesting furthermore that high frequency intramolecular phonon modes are relevant for the pairing mechanism.",

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AU - Degiorgi, L.

AU - Briceno, G.

AU - Fuhrer, M. S.

AU - Zettl, A.

AU - Wachter, P.

AU - Nicol, E. J.

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Y1 - 1995/3/15

N2 - We present the optical response of K3C60 and Rb3C60 single crystals in their normal and superconducting phase. Above Tc the optical conductivity is characterized by two components: a Drude one due to the free charge carriers and a mid-infrared absorption. Below Tc the data clearly indicates a superconducting gap in agreement with the weak coupling limit of the BCS theory, suggesting furthermore that high frequency intramolecular phonon modes are relevant for the pairing mechanism.

AB - We present the optical response of K3C60 and Rb3C60 single crystals in their normal and superconducting phase. Above Tc the optical conductivity is characterized by two components: a Drude one due to the free charge carriers and a mid-infrared absorption. Below Tc the data clearly indicates a superconducting gap in agreement with the weak coupling limit of the BCS theory, suggesting furthermore that high frequency intramolecular phonon modes are relevant for the pairing mechanism.

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