Frequency combinations in the magnetoresistance oscillations spectrum of a linear chain of coupled orbits with a high scattering rate

David Vignolles; Alain Audouard; Vladimir N. Laukhin; Jérome Béard; Enric Canadell; Nataliya G. Spitsina; Eduard Yagubskii

doi:10.1140/epjb/e2007-00066-x

paper

Frequency combinations in the magnetoresistance oscillations spectrum of a linear chain of coupled orbits with a high scattering rate

arXiv:cond-mat/0703252 · doi:10.1140/epjb/e2007-00066-x

Abstract

The oscillatory magnetoresistance spectrum of the organic metal (BEDO) $_{5}$ Ni(CN) $_{4} \cdot$ 3C $_{2}$ H $_{4}$ (OH) $_{2}$ has been studied up to 50 T, in the temperature range from 1.5 K to 4.2 K. In high magnetic field, its Fermi surface corresponds to a linear chain of quasi-two-dimensional orbits coupled by magnetic breakdown (MB). The scattering rate consistently deduced from the data relevant to the basic $α$ and the MB-induced $β$ orbits is very large which points to a significant reduction of the chemical potential oscillation. Despite of this feature, the oscillations spectrum exhibits many frequency combinations. Their effective masses and (or) Dingle temperature are not in agreement with either the predictions of the quantum interference model or the semiclassical model of Falicov and Stachowiak.

to be published in Eur. Phys. J. B (2007)

References in corpus (1)

Analytical treatment of the dHvA frequency combinations due to chemical potential oscillations in an idealized two-band Fermi liquid

Frequency combinations in the magnetoresistance oscillations spectrum of a linear chain of coupled orbits with a high scattering rate

Abstract

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