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Ferromagnetic/DMS hybrid structures: one- and zero-dimensional magnetic traps for quasiparticles

P. Redlinski·T. Wojtowicz·T. G. Rappoport·A. Libal·J. K. Furdyna·B. Janko
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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.

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P. Redlinski, T. Wojtowicz, T. G. Rappoport, A. Libal, J. K. Furdyna, B. Janko. 2004-11-18. Ferromagnetic/DMS hybrid structures: one- and zero-dimensional magnetic traps for quasiparticles. https://doi.org/10.1063/1.1994584

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