First-principles exchange interactions between ferro and antiferromagnetic films: Co on NiMn, a case study
Conference
·
OSTI ID:634050
Heisenberg exchange parameters at the interface of antiferromagnetic NiMn with ferromagnetic Co are calculated from first-principles. The authors use a layer version of the Korringa-Kohn-Rostocker multiple scattering approach and an expression, which is based on the expansion of the band energy, to calculate the exchange parameters from the underlying electronic structure. For bulk systems, the parameter sets yield Curie temperatures that are in good agreement with experimental values. In the interface region, the inter-layer interactions in NiMn change significantly compared to the bulk while the intra-layer interactions are almost unchanged.
- Research Organization:
- Oak Ridge National Lab., Metals and Ceramics Div., TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 634050
- Report Number(s):
- ORNL/CP-95042; CONF-980102-; ON: DE98000898; TRN: AHC2DT01%%60
- Resource Relation:
- Conference: 7. joint MMM-intermag conference, San Francisco, CA (United States), 6-9 Jan 1998; Other Information: PBD: 1997
- Country of Publication:
- United States
- Language:
- English
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