J. Phys. IV France
Volume 114, April 2004
Page(s) 323 - 325

J. Phys. IV France
114 (2004) 323
DOI: 10.1051/jp4:2004114072

H-T phase diagram of $\lambda$-(BETS) 2FeCl 4 under pressure

Y.J. Jo1, H. Kang1, T. Tanaka2, 3, M. Tokumoto2, 3, A. Kobayashi4, H. Kobayashi5, 3, S. Uji6 and W. Kang1, 1

1  Department of Physics, Ewha Womans University, Seoul 120-750, Korea
2  National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan
3  JST-CREST, Kawaguchi, Japan
4  Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
5  Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
6  National Institute for Material Science, Tsukuba, Ibaraki 305-0003, Japan

Interlayer magnetoresistance measurements under the pressure of 6 kbar have been performed for the magnetic field induced organic superconductor $\lambda$-(BETS) 2FeCl 4 to investigate the role of pressure and magnetic field. No evidence of the metal-insulator phase transition is observed down to 1.5 K and a broad superconducting transition occurs. A series of magnetic transition from antiferromagnetic to paramagnetic phase are observed with increasing magnetic field. Key words. H-T phase diagram, BETS, pressure.

© EDP Sciences 2004