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Magnetization-induced second harmonic generation from the Ni/Cu interface in multilayers on Cu(001)

Y. Z. Wu, R. Vollmer, H. Regensburger, X.-F. Jin, J. Kirschner
2000 Physical Review B (Condensed Matter)  

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Ultrathin Ni films in Cu/Ni/Cu͑001͒ bilayers and exchange coupled Ni films in Ni/Cu/Ni/Cu͑001͒ trilayers are investigated by magnetization induced second harmonic generation ͑MSHG͒. The results are analyzed in a model of localized nonlinear polarizabilities at the interfaces. We show that antiferromagnetic coupling in the Ni/Cu/Ni trilayers is observable with MSHG due to the presence of quantum well states ͑QWS's͒ in the Cu layer. The influence of the QWS's on the SHG from a Ni film in a
more » ... u͑001͒ bilayer is weaker compared to the case of Fe or Co bilayers.
doi:10.1103/physrevb.63.054401 fatcat:uztkswstbbfy3cc4plc4befgp4
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Y. Z. Wu, R. Vollmer, H. Regensburger, X.-F. Jin, J. Kirschner. "Magnetization-induced second harmonic generation from the Ni/Cu interface in multilayers on Cu(001)." Physical Review B (Condensed Matter) 63.5 (2000)