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Ferromagnetic Mn modulation-doped two-dimensional hole systems

Wurstbauer, Ursula ; Gronwald, Imke ; Stoeberl, U ; Vogl, Anton ; Schuh, Dieter ; Weiss, Dieter ; Wegscheider, Werner



Abstract

Mn modulation-doped strain relaxed In0.75Ga0.25As/In0.75Al0.25As single quantum-well (SQW) structures on (0 0 1) GaAs with an embedded InAs channel are fabricated by molecular beam epitaxy. The properties of the magnetic two-dimensional hole system were investigated by magnetotransport measurements up to 19 T in the temperature range from 50mK to room temperature. In the lowtemperature ...

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