Disentangling the conductivity spectra of two-dimensional organic conductors

The optical spectrum of a κ-phase organic conductor is thoroughly analyzed for the example of κ-(BEDT-TTF)2Cu[N(CN)2]Br0.85Cl0.15 in order to identify its various contributions. It is shown how the complex spectra can be decomposed using different approaches; the intradimer and interdimer contributi...

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Published inPhysica. B, Condensed matter Vol. 404; no. 3-4; pp. 541 - 544
Main Authors Dressel, M., Faltermeier, D., Dumm, M., Drichko, N., Petrov, B., Semkin, V., Vlasova, R., Méziere, C., Batail, P.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.2009
Elsevier
Subjects
Chemical Sciences
Drude weight
Electronic correlations
Mott–Hubbard transition
Optical properties
Organic superconductors
74.25.Gz
Organic superconductors
Mott–Hubbard transition
Electronic correlations
Drude weight
74.70.Kn
Optical properties
71.30.+h
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ISSN0921-4526
1873-2135
DOI10.1016/j.physb.2008.11.051

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Summary:The optical spectrum of a κ-phase organic conductor is thoroughly analyzed for the example of κ-(BEDT-TTF)2Cu[N(CN)2]Br0.85Cl0.15 in order to identify its various contributions. It is shown how the complex spectra can be decomposed using different approaches; the intradimer and interdimer contributions are discussed. In particular the fingerprints of electronic correlations in these spectra are considered.
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ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2008.11.051