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Calculated angular dependence of the interlayer couplings in Fe/Cr superlattices having imperfect interfaces

Authors
Journal
Journal of Magnetism and Magnetic Materials
0304-8853
Publisher
Elsevier
Publication Date
Volume
240
Identifiers
DOI: 10.1016/s0304-8853(01)00773-9
Keywords
  • Electronic Structure
  • Exchange Coupling—Bilinear–Biquadratic
  • Interface Roughness
  • Multilayers—Metallic

Abstract

Abstract We present calculations of the non-collinear magnetic structure in Fe/Cr superlattices having imperfect interfaces modeled by considering atomic steps in the Cr layers and Fe/Cr interfacial ordered compounds. The interlayer couplings are obtained directly from self-consistent tight binding band structure calculations. We show that the bilinear–biquadratic expression for the coupling energy fits nicely the calculated interlayer couplings curves.

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