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http://dx.doi.org/10.18419/opus-7020
Autor(en): | Dressel, Martin Eldridge, John E. Wang, H. Hau Geiser, Urs Williams, Jack M. |
Titel: | The infrared optical properties of the α-phase organic superconductor, α-(BEDT-TTF)2(NH4Hg(NCS)4) |
Erscheinungsdatum: | 1993 |
Dokumentart: | Zeitschriftenartikel |
Erschienen in: | Synthetic Metals 56 (1993), S. 2923-2926 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-46082 http://elib.uni-stuttgart.de/handle/11682/7037 http://dx.doi.org/10.18419/opus-7020 |
Zusammenfassung: | The title compound is the only known organic superconductor (Tc = 0.8 K) with an α-phase crystal structure, in which the conducting plane contains single BEDT-TT F molecules with alternating orientation, rather than the pairs of molecules found in the higher Tc k-phase compounds. We have measured the polarized reflectivity of protonated and deuterated (BEDT-TTF)2(NH4)Hg(NCS)4., from 80 cm-1 to 8000 cm-1, at temperatures between 6.5 K and 300 K. The overall shape of these spectra are discussed. The optical conductivity obtained after a Kramers-Kronig analysis shows no maximum in the mid-infrared as known from the compounds of the κ-phase due to the lack of dimerization of the BEDT-TTF molecules. This causes an accentuation of the far-infrared intraband conductivity. The vibrational features are assigned and discussed. |
Enthalten in den Sammlungen: | 15 Fakultätsübergreifend / Sonstige Einrichtung |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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dre30.pdf | 191,82 kB | Adobe PDF | Öffnen/Anzeigen |
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