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Magnetic properties of (001)bcc Fe/(001)fcc Ag superlattices

J. Appl. Phys. 67, 5409 (1990); doi:10.1063/1.344569

Issue Date: 1 May 1990

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R. Cabanel, P. Etienne, S. Lequien, and G. Creuzet
LCR Thomson-CSF, 91404 Orsay Cedex, France

A. Barthélémy and A. Fert
Laboratoire de Physique des Solides, UPS, 91405 Orsay, France
The magnetic properties of (001)bcc Fe/(001)fcc Ag superlattices grown by molecular-beam epitaxy on (001) GaAs and characterized by reflection high-energy electron diffraction, Auger spectroscopy, and x-ray diffraction are presented. From magnetization (SQUID) and torque experiments, the strong interface uniaxial anisotropy which tends to align the magnetization along the normal to the layers is determined. This interface anisotropy overcomes the demagnetizing field effect when the thickness of the Fe layers decreases below 10 Å. The anisotropy constant Ku is derived from both experiments, which leads to 0.8 erg/cm2 for the interface anisotropy constant Ks. Journal of Applied Physics is copyrighted by The American Institute of Physics.
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KEYWORDS and PACS

Keywords
PACS
  • 75.50.Bb
    Magnetic properties and materials Studies of specific magnetic materials Fe and its alloys
  • 75.50.Rr
    Magnetic properties and materials Studies of specific magnetic materials Magnetism in interface structures (including layer and superlattice structures)
  • 68.55.Bd
    Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) Thin film growth, structure, and epitaxy Molecular and atomic beam epitaxy
  • 75.30.Gw
    Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Magnetic anisotropy
  • YEAR: 1990

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PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (7)
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