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Titolo:
Magnetotransport studies of the Fermi surface in the organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br
Autore:
Weiss, H; Kartsovnik, MV; Biberacher, W; Steep, E; Balthes, E; Jansen, AGM; Kushch, ND;
Indirizzi:
MPI KFK, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France MPI KFK Grenoble France 9 h Magnet Field Lab, F-38042 Grenoble 9, France CNRS, F-38042 Grenoble, France CNRS Grenoble France F-38042CNRS, F-38042 Grenoble, France Walther Meissner Inst Tieftemp Forsch, D-85748 Garching, Germany Walther Meissner Inst Tieftemp Forsch Garching Germany D-85748 , Germany Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia Russian Acad Sci Chernogolovka Russia 142432 hernogolovka 142432, Russia Russian Acad Sci, Inst Chem Phys, Chernogolovka 142432, Russia Russian Acad Sci Chernogolovka Russia 142432 hernogolovka 142432, Russia
Titolo Testata:
SYNTHETIC METALS
fascicolo: 1-3, volume: 103, anno: 1999,
pagine: 1998 - 1999
SICI:
0379-6779(199906)103:1-3<1998:MSOTFS>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
PRESSURE; TEMPERATURE; TRANSITION;
Keywords:
organic conductors based on radical cation and or anion salts; organic superconductors; magnetotransport;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Weiss, H MPI KFK, Grenoble High Magnet Field Lab, BP 166, F-38042 Grenoble9, France MPI KFK BP 166 Grenoble France 9 166, F-38042 Grenoble 9, France
Citazione:
H. Weiss et al., "Magnetotransport studies of the Fermi surface in the organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br", SYNTH METAL, 103(1-3), 1999, pp. 1998-1999

Abstract

The interlayer magnetoresistance of the organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br has been measured at ambient pressure and under pressure up to 12 kbar. Shubnikov-de Haas oscillations of two main frequencies,F similar or equal to 3900 T and F similar or equal to 150 T, corresponding to 100% and 3.5 4% of the Brillouin zone cross-section area, are observedin the pressure ranges p 0 - 9.4 kbar and p > 5 kbar respectively. The parameters of the slow oscillations indicate a considerable deviation of the Fermi surface from the theoretically predicted one. We propose to explain the experimental data by taking into account a low-temperature superstructurewhich doubles the lattice period in the c-direction.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 06:53:20