Interference Effects Due to Commensurate Electron Trajectories and Topological Crossovers in (TMTSF)2ClO4
Strongly Correlated Electrons
2009-11-11 v2
Abstract
We report angle-dependent magnetoresistance measurements on (TMTSF)2ClO4 that provide strong support for a new macroscopic quantum phenomenon, the interference commensurate (IC) effect, in quasi-one dimensional metals. In addition to observing rich magnetoresistance oscillations, and fitting them with one-electron calculations, we observe a clear demarcation of field-dependent behavior at local resistance minima and maxima (versus field angle). Anticipated by a theoretical treatment of the IC effect in terms of Bragg reflections in the extended Brillouin zone, this behavior results from 1D-2D topological crossovers of electron wave functions as a function of field orientation.
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Cite
@article{arxiv.cond-mat/0503649,
title = {Interference Effects Due to Commensurate Electron Trajectories and Topological Crossovers in (TMTSF)2ClO4},
author = {H. I. Ha and A. G. Lebed and M. J. Naughton},
journal= {arXiv preprint arXiv:cond-mat/0503649},
year = {2009}
}
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14 pages