Frequency combinations in the magnetoresistance oscillations spectrum of a linear chain of coupled orbits with a high scattering rate
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.
- Publication:
-
European Physical Journal B
- Pub Date:
- February 2007
- DOI:
- 10.1140/epjb/e2007-00066-x
- arXiv:
- arXiv:cond-mat/0703252
- Bibcode:
- 2007EPJB...55..383V
- Keywords:
-
- 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;
- 71.18.+y;
- 71.20.Rv;
- 72.20.My;
- Fermi surface: calculations and measurements;
- effective mass g factor;
- Polymers and organic compounds;
- Galvanomagnetic and other magnetotransport effects;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- to be published in Eur. Phys. J. B (2007)