J. Béard, J. Billette, M. Suleiman, P. Frings, W. Knafo, G. W. Scheerer, F. Duc, D. Vignolles, M. Nardone, A. Zitouni, P. Delescluse, J. -M. Lagarrigue, F. Giquel, B. Griffe, N. Bruyant, J. -P. Nicolin, G. L. J. A. Rikken, R. B. Lyubovskii, G. V. Shilov, E. I. Zhilyaeva, R. N. Lyubovskaya, A. Audouard
De Haas-van Alphen oscillations of the organic metal $\theta$-(ET)$_4$ZnBr$_4$(C$_6$H$_4$Cl$_2$) 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 $\alpha$ and to the magnetic-breakdown orbit $\beta$.
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http://arxiv.org/abs/1210.2769
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