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The European Physical Journal B
ISSN: 1434-6028 (printed version)
ISSN: 1434-6036 (electronic version)
Abstract Volume 5 Issue 2 (1998) pp 179-185
A new stable organic metal: $\mathsf\kappa$-(BETS)$\mathsf{_2}$C(CN)$\mathsf{_3}$. The first $\mathsf\kappa$-type radical cation salt with a planar-triangular discrete organic anion
B.Z. Narymbetov (1), N.D. Kushch (2), L.V. Zorina (1), S.S. Khasanov (1), R.P. Shibaeva (1) (a), T.G. Togonidze (1), A.E. Kovalev (1), M.V. Kartsovnik (1)(3) (b), L.I. Buravov (2), E.B. Yagubskii (2) (c), E. Canadell (4) (d), A. Kobayashi (5), H. Kobayashi (6)
(1) Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
(2) Institute of Chemical Physics in Chernogolovka, Russian Academy of Sciences, 142432 Chernogolovka, MD, Russia
(3) Walther-Meissner-Institut, Walther-Meissner-Str. 8, 85748 Garching, Germany
(4) Institut de Ciencia de Materials de Barcelona (CSIC), Campus de la UAB, 08193 Bellaterra, Spain
(5) Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bonkyo-ku, Tokyo 113, Japan
(6) Institute for Molecular Science, Okazaki 444, Japan
Received: 11 March 1998 / Revised: 9 June 1998 / Accepted: 11 June 1998
Abstract: The $\k$-(BETS)2C(CN)3 radical cation salt was prepared by electrocrystallization, and its crystal structure was determined by single crystal X-ray diffraction. The electronic structure of $\k$-(BETS)2C(CN)3 was studied by means of the extended Hückel tight binding method. The electrical conductivity of this salt as a function of temperature shows a metallic behaviour down to 1.3 K. Shubnikov-de Haas oscillations reveal both the classical and magnetic breakdown orbits on the Fermi surface typical of the $\k$-type organic conductors. In addition, a low frequency oscillation (250 T) which is not predicted by the band structure calculations has been found in the oscillation spectrum.
PACS. 61.66.Hq. Organic compounds[:AND:]71.18+y. Fermi surface: calculations and measurements
(a) email: shibaeva@issp.ac.ru
(b) email: Mark_Kartsovnik@physik.tu-muenchen.de
(c) email: yagubski@icp.ac.ru
(d) email: canadell@zas.qf.ub.es
Article in PDF-Format (322 KB)
Online publication: September 16, 1998
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