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Light scattering study on hybrid structures of Zn 1− x − y Cd x Mn y Se quantum wells with ferromagnetic Co wires
Author(s) -
Sakuma M.,
Hyomi K.,
Souma I.,
Murayama A.,
Oka Y.
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200304176
Subject(s) - ferromagnetism , quantum well , scattering , condensed matter physics , magnetic field , paramagnetism , anisotropy , ion , magnetic semiconductor , materials science , chemistry , physics , optics , laser , organic chemistry , quantum mechanics
Sub‐micron scale hybrid structures of Zn 1− x − y Cd x Mn y Se diluted magnetic semiconductor (DMS) quantum wells (QWs) with ferromagnetic Co wires have been fabricated for the purpose of applying local magnetic fields to the DMS‐QW. The wire of DMS‐QW with the width down to 100 nm was sandwiched between the Co wires. The magneto‐optical properties are studied by spin‐flip light scattering of paramagnetic Mn‐ions in the DMS. The application of uniform magnetic fields higher than 0.25 T has been attained from the Co wires to the DMS‐QWs. In addition, the field application from the Co to the DMS‐QWs is switched on by weak magnetic fields of 0.03 T due to the magnetic shape anisotropy of the Co wires, which can realize the switching behavior of the spin alignment of Mn‐ions in the DMS‐QW. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)