Frequency combinations in the magnetoresistance oscillations spectrum of a linear chain ofcoupled orbits with a high scattering rate |
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| Authors: | D. Vignolles A. Audouard V. N. Laukhin J. Béard E. Canadell N. G. Spitsina E. B. Yagubskii |
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| Affiliation: | 1.Laboratoire National des Champs Magnétiques Pulsés (UMR 5147: Unité Mixte de Recherche CNRS - Université Paul Sabatier - INSA de Toulouse.),Toulouse,France;2.Institució Catalana de Recerca i Estudis Avan?ats (ICREA),Barcelona,Spain;3.Institut de Ciència de Materials de Barcelona,Bellaterra,Spain;4.Institute of Problems of Chemical Physics,MD,Russia |
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| Abstract: | ![]()
The oscillatory magnetoresistance spectrum of the organic metal (BEDO)5Ni(CN)4. 3C2H4(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. |
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| Keywords: | PACS. 71.18.+y Fermi surface: calculations and measurements effective mass, g factor 71.20.Rv Polymers and organic compounds 72.20.My Galvanomagnetic and other magnetotransport effects |
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