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- Title
A Study on Anisotropy in Ultrathin Epitaxial Fe Films in the Few-Monolayer Region.
- Authors
Zhai, Y.; Shi, L.; Zhang, W.; Xu, Y. X.; Lu, M.; Zhai, H. R.; Tang, W. X.; Xu, Y. B.; Bland, J. A. C.
- Abstract
The magnetic properties and magnetic anisotropy of epitaxial ultrathin Fe films (4.1–12.7 ML) grown on GaAs (100) are studied using ex situ magnetooptical Kerr (MOKE) loop measurement and Ferromagnetic Resonance (FMR). They give consistent results. The behavior of out-of-plane and in-plane magnetic anisotropy is evaluated from the FMR data. A strong second order out-of-plane anisotropy and an in-plane uniaxial anisotropy are observed to decrease with thickness. A moderate fourth order out-of-plane anisotropy and a four-fold in-plane anisotropy appear for thicker films and increase with thickness. Their origins are discussed.
- Subjects
ANISOTROPY; EPITAXY; FERROMAGNETIC resonance; MAGNETOOPTICS
- Publication
Modern Physics Letters B, 2003, Vol 17, Issue 20/21, p1095
- ISSN
0217-9849
- Publication type
Article
- DOI
10.1142/S0217984903006037