Two-dimensional magnetic quantum oscillations observed in an organic metal

Authors
Hagel, J Wanka, S Wosnitza, J Balthes, E Schlueter, JA Kini, AM Geiser, U Mohtasham, J Winter, RW Gard, GL
Citation
J. Hagel et al., Two-dimensional magnetic quantum oscillations observed in an organic metal, SYNTH METAL, 120(1-3), 2001, pp. 813-814
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
120
Issue
1-3
Year of publication
2001
Pages
813 - 814
Database
ISI
SICI code
0379-6779(20010315)120:1-3<813:TMQOOI>2.0.ZU;2-W
Abstract
The de Haas-van Alphen (dHvA) signal of the organic superconductor beta "-( BEDT-TTF)(2)SF5CH2CF2SO3 shows an inverse-sawtooth wave form which proves t he existence of an ideal two-dimensional (2D) Fermi surface. The dHvA wave shape can almost perfectly be described by a 2D theory assuming a constant chemical potential. This either implies the existence of the predicted quas i-one-dimensional band with an exceptionally large density of states or the chemical potential may be pinned due to localized states near the Fermi en ergy.