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Light and Electric‐Field Control of Ferromagnetism in Cd 1—x Mn x Te Based Quantum Wells
Author(s) -
Boukari H.,
Bertolini M.,
Cibert J.,
Ferrand D.,
Genuist Y.,
Tatarenko S.,
Kossacki P.,
Gaj J.A.,
Dietl T.
Publication year - 2002
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 - 10.1002/1521-3951(200201)229:2<737::aid-pssb737>3.0.co;2-3
Subject(s) - ferromagnetism , condensed matter physics , electric field , quantum well , photon energy , band gap , photon , magnetic semiconductor , physics , materials science , optics , quantum mechanics , laser
Light and electric field control of ferromagnetism in Cd 0.96 Mn 0.04 Te quantum wells is demonstrated. Ferromagnetic transition is observed at a constant temperature as a function of sheet concentration of 2D free carrier gas in the quantum well. The carrier concentration is controlled either by light with photon energy above the band gap of the barriers or by applying a voltage in a p—i—n diode structure.