Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-7042
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dc.contributor.authorDonavan, Stevede
dc.contributor.authorKim, Yongde
dc.contributor.authorDegiorgi, Leonardode
dc.contributor.authorDressel, Martinde
dc.contributor.authorGrüner, Georgede
dc.contributor.authorWonneberger, Wolfgangde
dc.date.accessioned2009-09-04de
dc.date.accessioned2016-03-31T11:41:46Z-
dc.date.available2009-09-04de
dc.date.available2016-03-31T11:41:46Z-
dc.date.issued1994de
dc.identifier.other316413097de
dc.identifier.urihttp://nbn-resolving.de/urn:nbn:de:bsz:93-opus-46277de
dc.identifier.urihttp://elib.uni-stuttgart.de/handle/11682/7059-
dc.identifier.urihttp://dx.doi.org/10.18419/opus-7042-
dc.description.abstractConductivity 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.isoende
dc.rightsinfo:eu-repo/semantics/openAccessde
dc.subject.classificationSpinwelle , Supraleiter , Bechgaard-Salzede
dc.subject.ddc530de
dc.titleThe electrodynamics of the spin density wave ground state : optical experiments on (TMTSF)2PF6en
dc.typearticlede
ubs.fakultaetFakultätsübergreifend / Sonstige Einrichtungde
ubs.institutSonstige Einrichtungde
ubs.opusid4627de
ubs.publikation.sourcePhysical Review B 49 (1994), S. 3363-3377. URL http://dx.doi.org./10.1103/PhysRevB.49.3363de
ubs.publikation.typZeitschriftenartikelde
Appears in Collections:15 Fakultätsübergreifend / Sonstige Einrichtung

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