Issue |
J. Phys. IV France
Volume 114, April 2004
|
|
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Page(s) | 351 - 353 | |
DOI | https://doi.org/10.1051/jp4:2004114080 |
J. Phys. IV France 114 (2004) 351
DOI: 10.1051/jp4:2004114080
SdH experiments on the organic superconductor
-(BEDT-TTF)
2I3 under hydrostatic
pressure
A. Nothardt1, 1, E. Balthes1, W. Schmidt1, D. Schweitzer1, M.V. Kartsovnik2 and I. Sheikin3
1 3. Physikalisches Institut der Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany
2 Walther-Meissner-Institut, Walther-Meissner-Strasse 8, 85748 Garchingen, Germany
3 Grenoble High Magnetic Field Laboratory, MPI-FKF and CNRS, BP. 166, 38042 Grenoble Cedex 9, France
Abstract
Measurements of magneto-transport on the organic
superconductor
-(BEDT-TTF)
2I
3 in magnetic fields up to 23
T at 0.48 K under hydrostatic pressures up to 9 kbar are reported. In this
pronounced two-dimensional (2D) electronic system strong anomalous damping
effects of Shubnikov-de Haas (SdH) oscillations are observed under very
specific experimental conditions. This hints to the presence of strong
electron correlations, which may occur in 2D systems. SdH high pressure
experiments are reported, which show, that even 9 kbar cannot suppress the
above mentioned effects in
-(BEDT-TTF)
2I
3.
Key words. Organic superconductors, Fermi surfaces, Magneto-quantum
oscillations, Hydrostatic pressure.
© EDP Sciences 2004