Spin reorientation and structural relaxation of atomic layers: pushing the limits of accuracy.
نویسندگان
چکیده
The correlation between an ad-layer-induced spin reorientation transition (SRT) and the ad-layer-induced structural relaxation is investigated by combined in situ surface x-ray diffraction and magneto-optical Kerr-effect experiments on Ni/Fe/Ni(111) layers on W(110). The Fe-induced SRT from in-plane to out-of-plane, and the SRT back to in-plane upon subsequent coverage by Ni, are each accompanied by a small lattice relaxation of at most 0.002 A. Such a small strain variation excludes a magnetoelasticity driven SRT, and we suggest the interface anisotropy as a possible driving force.
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عنوان ژورنال:
- Physical review letters
دوره 93 15 شماره
صفحات -
تاریخ انتشار 2004