Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
FREEZEOUT OF THE ELECTRICAL-RESISTIVITY IN (BEDT-TTF)(2)I-3 BELOW 20-K
Autore:
WEGER M; TITTELBACH M; BALTHES E; SCHWEITZER D; KELLER HJ;
Indirizzi:
UNIV STUTTGART,INST PHYS 3 D-70550 STUTTGART GERMANY UNIV HEIDELBERG,INST CHEM W-6900 HEIDELBERG GERMANY
Titolo Testata:
Journal of physics. Condensed matter
fascicolo: 45, volume: 5, anno: 1993,
pagine: 8569 - 8578
SICI:
0953-8984(1993)5:45<8569:FOTEI(>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
TETRACYANOQUINODIMETHANE TTF-TCNQ; DIMENSIONAL ORGANIC METAL; TEMPERATURE-DEPENDENCE; TRANSPORT-PROPERTIES; CHARGE-TRANSFER; BETA-(BEDT-TTF)2I3; SUPERCONDUCTORS; PHOTOEMISSION; CONDUCTIVITY; SCATTERING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
55
Recensione:
Indirizzi per estratti:
Citazione:
M. Weger et al., "FREEZEOUT OF THE ELECTRICAL-RESISTIVITY IN (BEDT-TTF)(2)I-3 BELOW 20-K", Journal of physics. Condensed matter, 5(45), 1993, pp. 8569-8578

Abstract

We have measured the temperature (T) dependence of the resistivity rho of the beta and kappa phases of (BEDT-TTF)(2)I-3 from 300 K down to T-c (similar to 1.3 K and similar to 4 K for the beta and kappa phases, respectively). Between 100 K and 20 K, rho proportional to T-2. Below 20 K, the resistivity falls below the T-2 law. We calculate the resistivity due to electron-electron scattering and find that this contribution is far too small to account for the measured resistivity, besides being inconsistent with the freezeout below 20 K. We suggest that the resistivity is due to electron-phonon scattering, described by a novel mechanism that has been proposed for the high-T-c cuprates. We alsosuggest that this mechanism accounts for tbe T-2 law observed in materials such as TiS2, Nb-doped SrTiO3, and intercalated graphite.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 07:12:04