Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen:
http://dx.doi.org/10.18419/opus-7672
Langanzeige der Metadaten
DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Moldenhauer, Jörg | de |
dc.contributor.author | Horn, Christof | de |
dc.contributor.author | Pokhodnia, Konstantin I. | de |
dc.contributor.author | Schweitzer, Dieter | de |
dc.contributor.author | Heinen, Ilsabe | de |
dc.contributor.author | Keller, Heimo J. | de |
dc.date.accessioned | 2011-08-16 | de |
dc.date.accessioned | 2016-03-31T11:43:51Z | - |
dc.date.available | 2011-08-16 | de |
dc.date.available | 2016-03-31T11:43:51Z | - |
dc.date.issued | 1993 | de |
dc.identifier.other | 354258575 | de |
dc.identifier.uri | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-65740 | de |
dc.identifier.uri | http://elib.uni-stuttgart.de/handle/11682/7689 | - |
dc.identifier.uri | http://dx.doi.org/10.18419/opus-7672 | - |
dc.description.abstract | IR absorption spectra from various K-phases of BEDT-TTF radical cation salts as well as from α-(BEDT-TTF)2I3 are presented. From tbese spectra one special mode ν27 representing the asymmetric ring C=C stretching vibration is assigned and the dependence of its frequency from the average charge on the donor molecule is given. The investigation of the metal-insulator phase transition of α-(BEDT-TTF)2I3 at 135 K with respect to this vibrational model ν27 gives strong indication of a charge localization in at least one of the two crystallographic different stacks. Furthermore, we correlate the frequencies of the CH2 stretching modes of a variety of BEDT-TTF radical salts with the superconducting phase transition temperatures. These frequencies are evidently not charge dependent, but significantly reflect the strength of the interaction of the donor molecule with the respective anion. It could be shown that phases with a higher Tc of their superconducting transition exhibit a smaller red shift of these frequencies, i.e., a less attractive donor-anion interaction. | en |
dc.language.iso | en | de |
dc.rights | info:eu-repo/semantics/openAccess | de |
dc.subject.classification | Tetrathiafulvalen , Organischer Supraleiter , FT-IR-Spektroskopie , Charge-transfer-Komplexe | de |
dc.subject.ddc | 530 | de |
dc.title | FT-IR absorption spectroscopy of BEDT-TTF radical salts: charge transfer and donor-anion interaction | en |
dc.type | article | de |
dc.date.updated | 2011-08-16 | de |
ubs.fakultaet | Fakultätsübergreifend / Sonstige Einrichtung | de |
ubs.fakultaet | Fakultät Mathematik und Physik | de |
ubs.institut | Sonstige Einrichtung | de |
ubs.institut | 3. Physikalisches Institut | de |
ubs.opusid | 6574 | de |
ubs.publikation.source | Synthetic metals 60 (1993), S. 31-38 | de |
ubs.publikation.typ | Zeitschriftenartikel | de |
Enthalten in den Sammlungen: | 15 Fakultätsübergreifend / Sonstige Einrichtung |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
schw177.pdf | 3,28 MB | Adobe PDF | Öffnen/Anzeigen |
Alle Ressourcen in diesem Repositorium sind urheberrechtlich geschützt.