Angular magnetoresistance oscillations in bilayers in tilted magnetic fields

Details Angular magnetoresistance oscillations in bilayers in tilted magnetic fields Angular magnetoresistance oscillations in bilayers in tilted magnetic fields

2005-07-05

arxiv.org/abs/cond-mat/0507120v3

Physica E 34, 128-131 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures, Proceedings of EP2DS-16. V.2: figures corrected, one reference added. V3: one reference added

Scientific paper

10.1016/j.physe.2006.03.001

Angular magnetoresistance oscillations (AMRO) were originally discovered in organic conductors and then found in many other layered metals. It should be possible to observe AMRO to semiconducting bilayers as well. Here we present an intuitive geometrical interpretation of AMRO as the Aharonov-Bohm interference effect, both in real and momentum spaces, for balanced and imbalanced bilayers. Applications to the experiments with bilayers in tilted magnetic fields in the metallic state are discussed. We speculate that AMRO may be also observed when each layer of the bilayer is in the composite-fermion state.

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