Temperature-dependent biquadratic coupling in antiferromagnetically coupled Fe/FeSi multilayers
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Fe/FeSi multilayers are known to exhibit a strong antiferromagnetic interlayer coupling peak centered at a nominal FeSi spacer thickness of {approximately}15{plus_minus}2 A at room temperature, and to develop remanence in the magnetic hysteresis loop upon cooling to {approximately}100 K. An analysis of the hysteresis loops is found to require the inclusion of a temperature-dependent biquadratic (90{degree} coupling) in addition to the bilinear coupling term in the energetics. The temperature dependence of the Fe/FeSi multilayer coupling can then be understood in terms that are applicable to conventional metallic multilayer systems such as Fe/Cr. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 279073
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 9 Vol. 53; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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