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Titolo:
MAGNETIC-FIELD DEPENDENT EFFECTIVE-MASS IN THE ORGANIC SUPERCONDUCTORKAPPA-(BEDT-TTF)(2)I-3
Autore:
BALTHES E; SCHWEITZER D; HEINEN I; KELLER HJ; BIBERACHER W; JANSEN AGM; STEEP E;
Indirizzi:
UNIV STUTTGART,INST PHYS 3,PFAFFENWALDRING 57 D-70550 STUTTGART GERMANY UNIV HEIDELBERG,INST ANORGAN CHEM D-69120 HEIDELBERG GERMANY WALTHER MEISSNER INST TIEFTEMP FORSCH D-85748 GARCHING GERMANY MAX PLANCK INST FESTKORPERFORSCH,HIGH FIELD MAGNET LAB F-38042 GRENOBLE 9 FRANCE
Titolo Testata:
Acta Physica Polonica. A
fascicolo: 4-5, volume: 87, anno: 1995,
pagine: 767 - 772
SICI:
0587-4246(1995)87:4-5<767:MDEITO>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
FERMI-SURFACE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
E. Balthes et al., "MAGNETIC-FIELD DEPENDENT EFFECTIVE-MASS IN THE ORGANIC SUPERCONDUCTORKAPPA-(BEDT-TTF)(2)I-3", Acta Physica Polonica. A, 87(4-5), 1995, pp. 767-772

Abstract

kappa-(BEDT-TTF)(2)I-3 is an electronically extreme two-dimensional organic metal with a superconducting transition at around 4 K. In magnetic fields above 12 T the effective mass, as obtained from the temperature dependence of the amplitudes of Shubnikov-de Haas oscillations, is magnetic field dependent as long as the magnetic field is arranged perpendicular to the conducting planes. In contrast to this, by turningthe magnetic field by 27 degrees or even only 9 degrees the observed effective mass (as obtained from Shubnikov-de Haas and de Haas-van Alphen measurements) is field independent. We suppose that the occurrenceof anyons at temperatures below 1 K in fields above 12 T is the reason for the observed field dependence of the effective mass.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 07:16:17