The European Physical Journal Applied Physics

Physics of Organic Materials and Devices

High-frequency magnetic oscillations of the organic metal θ-(ET)4ZnBr4(C6H4Cl2) in pulsed magnetic field of up to 81 T

J. Béarda1, J. Billettea1, M. Suleimana1, P. Fringsa1, W. Knafoa1, G.W. Scheerera1, F. Duca1, D. Vignollesa1, M. Nardonea1, A. Zitounia1, P. Delesclusea1, J.-M. Lagarriguea1, F. Giquela1, B. Griffea1, N. Bruyanta1, J.-P. Nicolina1, G.L.J.A. Rikkena1, R.B. Lyubovskiia2, G.V. Shilova2, E.I. Zhilyaevaa2, R.N. Lyubovskayaa2 and A. Audouarda1 c1

a1 Laboratoire National des Champs Magnéetiques Intenses (UPR 3228 CNRS, INSA, UJF, UPS), 143 avenue de Rangueil, F-31400 Toulouse, France

a2 Institute of Problems of Chemical Physics, RAS, 142432 Chernogolovka, MD, Russia

Abstract

De Haas-van Alphen oscillations of the organic metal θ-(ET)4ZnBr4(C6H4Cl2) are studied in pulsed magnetic fields up to 81 T. The long decay time of the pulse allows determining reliable field-dependent amplitudes of Fourier components with frequencies up to several kiloteslas. The Fourier spectrum is in agreement with the model of a linear chain of coupled orbits. In this model, all the observed frequencies are linear combinations of the frequency linked to the basic orbit α and to the magnetic-breakdown orbit β.

(Received April 26 2012)

(Revised July 24 2012)

(Accepted August 28 2012)

(Online publication October 01 2012)

Correspondence:

c1 e-mail: alain.audouard@lncmi.cnrs.fr