Magnetic and structural properties of epitaxial Fe thin films on GaAs(001) and interfaces
- 作者：Doi ; M. ; Cuenya ; B.Roldan ; Keune ; W. ; Schmitte ; T. ; Nefedov ; A. ; Zabel ; H. ; Spoddig ; D. ; Meckenstock ; R. ; et. al.
- 关键词：Iron/gallium arsenide ; Magneto-optic Kerr effect ; Ferromagnetic resonance ; Mö ; ssbauer effect ; Reflection high-energy electron diffraction
- 刊名：Journal of Magnetism and Magnetic Materials
- 出版年：2002
- 期刊代码：31_03048853
- 类别：ph
- 出版时间：February, 2002
- 卷：240
- 期：1-3
- 页码：407-409
- 文件大小：150 K
摘要
Fe(001) thin films (70Å) with 57Fe(7.2Å) tracer layers at the interface were epitaxially grown on GaAs(4×6) surfaces. Magneto-optic Kerr effect and Ferromagnetic resonance measurements indicate a dominant 2-fold in-plane magnetic anisotropy (easy axis along [110]) superimposed to a 4-fold anisotropy, and small coercivity (
yphs/BQ1.GIF>10Oe). Mössbauer (CEMS) measurements indicate no magnetic “dead layer” and an average Fe moment of yphs/BQ1.GIF>1.7–2μB at the Fe/GaAs interface.
yphs/BQ1.GIF>10Oe). Mössbauer (CEMS) measurements indicate no magnetic “dead layer” and an average Fe moment of yphs/BQ1.GIF>1.7–2μB at the Fe/GaAs interface.