Eur. Phys. J. Appl. Phys. (2012) 59: 30201
https://doi.org/10.1051/epjap/2012120160

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

¹ Laboratoire National des Champs Magnéetiques Intenses (UPR 3228 CNRS, INSA, UJF, UPS), 143 avenue de Rangueil, F-31400 Toulouse, France
² Institute of Problems of Chemical Physics, RAS, 142432 Chernogolovka, MD, Russia

^a e-mail: alain.audouard@lncmi.cnrs.fr

Received: 26 April 2012
Revised: 24 July 2012
Accepted: 28 August 2012
Published online: 1 October 2012

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.