Magnetic and structural properties of epitaxial Fe thin films on GaAs(0 0 1) and interfaces
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چکیده
Fe(0 0 1) thin films (70 ( A) with Fe(7.2 ( A) 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 [1 1 0]) superimposed to a 4-fold anisotropy, and small coercivity (B10Oe). M . ossbauer (CEMS) measurements indicate no magnetic ‘‘dead layer’’ and an average Fe moment of B1.7–2mB at the Fe/GaAs interface. r 2002 Elsevier Science B.V. All rights reserved.
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تاریخ انتشار 2002