SHUBNIKOV-DE HAAS OSCILLATIONS IN THE ORGANIC SUPERCONDUCTOR KAPPA-(BEDT-TTF)(2)CU[N(CN)(2)]BR, WHERE BEDT-TTF IS BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE

Citation
Mv. Kartsovnik et al., SHUBNIKOV-DE HAAS OSCILLATIONS IN THE ORGANIC SUPERCONDUCTOR KAPPA-(BEDT-TTF)(2)CU[N(CN)(2)]BR, WHERE BEDT-TTF IS BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE, Physical review. B, Condensed matter, 52(22), 1995, pp. 15715-15718
Citations number
22
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
52
Issue
22
Year of publication
1995
Pages
15715 - 15718
Database
ISI
SICI code
0163-1829(1995)52:22<15715:SHOITO>2.0.ZU;2-7
Abstract
Magnetoresistance of the layered organic superconductor kappa-(BEDT-TT F)(2)X with X=Cu[N(CN)(2)]Br has been studied under pressure up to app roximate to 9 kbar. Prominent oscillations attributed to the Shubnikov -de Haas effect have been found at the highest pressure. The oscillati on frequency corresponds to a Fermi-surface cylinder with its axis nor mal to the crystal highly conducting plane and cross section of 1.56x1 0(14) cm(-2). The latter value is a factor of 4 smaller than that pred icted by band-structure calculations for the ambient pressure.