Spin Reorientations Induced by Morphology Changes in Fe/Ag(001)
D.M. Schaller, D.E. Buergler, C.M. Schmidt, F. Meisinger, and H.-J., Guentherodt
TL;DR
This study demonstrates how surface morphology changes in Fe/Ag(001) films, induced by annealing, lead to spin reorientations, with magneto-optical Kerr effect and STM used to analyze the phenomena.
Contribution
It provides a detailed explanation of spin reorientations based on surface roughness effects on magnetic anisotropy, linking morphology to magnetic behavior.
Findings
Spin reorientations occur with annealing-induced roughness changes.
Surface roughness influences magnetic anisotropy and spin orientation.
Magneto-optical Kerr effect and STM effectively characterize the phenomena.
Abstract
By means of magneto-optical Kerr effect we observe spin reorientations from in-plane to out-of-plane and vice versa upon annealing thin Fe films on Ag(001) at increasing temperatures. Scanning tunneling microscopy images of the different Fe films are used to quantify the surface roughness. The observed spin reorientations can be explained with the experimentally acquired roughness parameters by taking into account the effect of roughness on both the magnetic dipolar and the magnetocrystalline anisotropy.
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