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Strain-induced spin reorientation of bcc-like iron films grown on Cu(001)

AutorCorredor, Edna C.; Arnaudas, J. I.; Ciria, Miguel; Lofink, Fabian; Rößler, Stefan; Frömter, Robert; Oepen, Hans Peter
Fecha de publicación2014
EditorAmerican Physical Society
CitaciónPhysical Review B 90: 184410 (2014)
ResumenThe in-plane orientation of the magnetization vector M in bcc-like Fe(110) films grown on Cu(001) is determined by means of scanning electron microscopy with polarization analysis. For thicknesses of 2 nm, slightly above the fcc/bcc phase transition, it is found that M is oriented along the <110> directions of the Cu(001) substrate. Following the Pitsch orientational relationship these correspond to magnetically hard <11¯1> and <11¯2> axes of bulk iron. This finding is in strong contrast to the behavior reported for thicker films (above 3 nm) of bcc Fe/Cu(001), where the<100> directions of the substrate are preferred. The role of strain in the iron film is discussed, inferring that the presence of a shear strain is mandatory to explain the spin reorientation via the magnetoelastic contribution to the magnetic anisotropy energy.
DescripciónUnder the terms of the Creative Commons Attribution License 3.0 (CC-BY).
Versión del editorhttp://dx.doi.org/10.1103/PhysRevB.90.184410
Identificadoresdoi: 10.1103/PhysRevB.90.184410
issn: 1098-0121
e-issn: 1550-235X
Aparece en las colecciones: (ICMA) Artículos
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