J. Phys. I France
Volume 4, Numéro 1, January 1994
Page(s) 159 - 166
DOI: 10.1051/jp1:1994104
J. Phys. I France 4 (1994) 159-166

High-field magnetotransport of organic conductors (BEDT-TTF) 2TlHg(XCN) 4 With X = S and Se

M. V. Kartsovnik1, D. V. Mashovets2, D. V. Smirnov2, V. N. Laukhin3, A. Gilewski4, 5 and N. D. Kushch3

1  Institute of Solid State Physics, Chernogolovka, MD, 142432 Russia
2  A. F. loffe Physical Technical Institute, St-Petersburg, 194021 Russia
3  Institute of Chemical Physics, Chernogolovka, MD, 142432 Russia
4  MAG-NET Laboratory, ul. Gajowicka 95, 53-529 Wroclaw, Poland
5  International Laboratory of Strong Magnetic Fields and Low Temperatures, ul. Gajowicka 95, 53-529 Wroclaw, Poland

(Received 26 July 1993, accepted 3 September 1993)

High field magnetoresistance of layered organic metals (BEDT-TTF) 2TlHg(XCN) 4 with X = S and Se has been studied using pulsed magnetic fields. Sharp negative slope and strong hysteresis of the magnetoresistance of (BEDT-TTF) 2TlHg(XCN) 4 found between about 11 and 27 T suggest a first-order phase transition to occur at those fields. Two different types of angular magnetoresistance oscillations corresponding most likely to different electronic states are observed in the low- and high-field phases, respectively. In contrast, the classical magnetoresistance of the salt with X = Se is found to be smoothly growing with the field increase. The obtained results are compared with those reported earlier on the (BEDT-TTF) 2MHg(SCN) 4 salts with M = K and NH 4 and discussed in the framework of the model proposed recently for the low-temperature electronic state of (BEDT-TTF) 2TlHg(SCN) 4.

© Les Editions de Physique 1994

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.