Correlation between the signs of the magnetoresistance and of the interlayer coupling in MnGa/(Mn,Ga,As)/MnGa trilayers

Correlation between the signs of the magnetoresistance and of the interlayer coupling in MnGa/(Mn,Ga,As)/MnGa trilayers

A correlation is found between the sign of the magnetoresistance ΔR=(RP−RAP) and the sign of the interlayer coupling in MnGa/(Mn,Ga,As)/MnGa trilayers (subscript P, AP=parallel, antiparallel magnetic alignment of both MnGa layers). Ferromagnetic coupling results in ΔR0. This correlation has not been...

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Veröffentlicht in:Applied physics letters 1997-08, Vol.71 (7), p.971-973
Hauptverfasser: Van Roy, W., Akinaga, H., Miyanishi, S., Asamitsu, A.
Format: Artikel
Sprache:eng
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Zusammenfassung:A correlation is found between the sign of the magnetoresistance ΔR=(RP−RAP) and the sign of the interlayer coupling in MnGa/(Mn,Ga,As)/MnGa trilayers (subscript P, AP=parallel, antiparallel magnetic alignment of both MnGa layers). Ferromagnetic coupling results in ΔR0. This correlation has not been observed before and can not be explained by the usual model for giant magnetoresistance in magnetic multilayers.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.119703