Signatures of electron-electron correlations in the optical spectra of α-(BEDT-TTF) 2 M Hg(SCN) 4 (M =NH 4 and Rb)
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
Springer New York LLCDate
2006-02-01Citation
10.1007/s10909-006-9116-9
Journal of Low Temperature Physics 142.3-4 (2006): 345-352
ISSN
0022-2291 (print); 1573-7357 (online)DOI
10.1007/s10909-006-9116-9Editor's Version
http://dx.doi.org/10.1007/s10909-006-9116-9Subjects
72.15.Nj; 74.70.Kn; FísicaNote
The final publication is available at Springer via http://dx.doi.org/10.1007/s10909-006-9116-9Rights
© 2006 Springer International Publishing AGAbstract
We interpret the optical spectra of α-(BEDT-TTF)2M Hg(SCN)4 (M=NH4 and Rb) in terms of a 1/4 filled metallic system close to charge ordering and show that in the conductivity spectra of these compounds a fraction of the spectral weight is shifted from the Drude-peak to higher frequencies due to strong electronic correlations. Analyzing the temperature dependence of the electronic parameters, we distinguish between different aspects of the influence of electronic correlations on optical properties. We conclude, that the correlation effects are slightly weaker in the NH4 compound compared to the Rb one
Files in this item
Google Scholar:Drichko, N.
-
Dressel, M.
-
Merino Troncoso, Jaime
-
Greco, A.
-
Schlueter, J.
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.