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http://dx.doi.org/10.18419/opus-7042
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DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Donavan, Steve | de |
dc.contributor.author | Kim, Yong | de |
dc.contributor.author | Degiorgi, Leonardo | de |
dc.contributor.author | Dressel, Martin | de |
dc.contributor.author | Grüner, George | de |
dc.contributor.author | Wonneberger, Wolfgang | de |
dc.date.accessioned | 2009-09-04 | de |
dc.date.accessioned | 2016-03-31T11:41:46Z | - |
dc.date.available | 2009-09-04 | de |
dc.date.available | 2016-03-31T11:41:46Z | - |
dc.date.issued | 1994 | de |
dc.identifier.other | 316413097 | de |
dc.identifier.uri | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-46277 | de |
dc.identifier.uri | http://elib.uni-stuttgart.de/handle/11682/7059 | - |
dc.identifier.uri | http://dx.doi.org/10.18419/opus-7042 | - |
dc.description.abstract | Conductivity measurements are reported in the organic linear-chain compound (TMTSF)2PF6 , in both the metallic and spin-density-wave states. The components of the complex conductivity were established by measurements in the radio-frequency, micro- and millimeter wave, and infrared spectral ranges. At temperatures above the spin-density-wave transition, a Drude-like metallic behavior was found together with a temperature-independent feature at higher frequencies. An observed Drude scattering rate of 3 cm-1 was found, placing the material well into the clean limit. In the spin-density-wave state, the low field dc resistivity shows an activated behavior similar to a standard semiconductor with a gap value 2Δ/kB≈45 K. The ac response shows a strong frequency dependence, and most importantly, we observe two subgap modes: a very broad one in the radio frequency range, due to internal deformations of the spin density wave, and a narrow mode near 0.1 cm-1, which we interpret as the response of the q=O phason. Furthermore, as expected for a material in the clean limit, we do not see evidence for a single particle gap in the infrared spectral ange. In this paper, we will compare our experimental results with the various models of spindensity-wave dynamics and comment on the current status of the understanding of the dynamical response of spin density waves. | en |
dc.language.iso | en | de |
dc.rights | info:eu-repo/semantics/openAccess | de |
dc.subject.classification | Spinwelle , Supraleiter , Bechgaard-Salze | de |
dc.subject.ddc | 530 | de |
dc.title | The electrodynamics of the spin density wave ground state : optical experiments on (TMTSF)2PF6 | en |
dc.type | article | de |
ubs.fakultaet | Fakultätsübergreifend / Sonstige Einrichtung | de |
ubs.institut | Sonstige Einrichtung | de |
ubs.opusid | 4627 | de |
ubs.publikation.source | Physical Review B 49 (1994), S. 3363-3377. URL http://dx.doi.org./10.1103/PhysRevB.49.3363 | de |
ubs.publikation.typ | Zeitschriftenartikel | de |
Enthalten in den Sammlungen: | 15 Fakultätsübergreifend / Sonstige Einrichtung |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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dre36.pdf | 2,73 MB | Adobe PDF | Öffnen/Anzeigen |
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