Ferromagnetic/DMS hybrid structures: one- and zero-dimensional magnetic traps for quasiparticles
Abstract
We investigated possibility of using local magnetic field originating from ferromagnetic island deposited on the top of semiconductor quantum well to produce zero- and one-dimensional traps for quasi-particles with spin. In particular we considered two shapes of experimentally made magnets - cylindrical and rectangular. In the case of ferromagnetic micro-disk the trap can localize spin in three dimensions, contrary to the rectangular micro-magnet which creates a trap that allows free propagation in one direction. We present in detail prediction for absorption spectrum around the main absorption edge in both type of micro-magnets.
Cite
@article{arxiv.cond-mat/0411482,
title = {Ferromagnetic/DMS hybrid structures: one- and zero-dimensional magnetic traps for quasiparticles},
author = {P. Redlinski and T. Wojtowicz and T. G. Rappoport and A. Libal and J. K. Furdyna and B. Janko},
journal= {arXiv preprint arXiv:cond-mat/0411482},
year = {2009}
}
Comments
to appear in the Proceedings of the 27th International Conference on the Physics of Semiconductors, 2 pages, 3 figures