First-principles exchange interactions between ferro and antiferromagnetic films: Co on NiMn, a case study

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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.

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13 p.

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Schulthess, T.C. & Butler, W.H. December 31, 1997.

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Description

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.

Physical Description

13 p.

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OSTI as DE98000898

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  • 7. joint MMM-intermag conference, San Francisco, CA (United States), 6-9 Jan 1998

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  • Other: DE98000898
  • Report No.: ORNL/CP--95042
  • Report No.: CONF-980102--
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 634050
  • Archival Resource Key: ark:/67531/metadc696434

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  • December 31, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 3, 2016, 6:58 p.m.

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Schulthess, T.C. & Butler, W.H. First-principles exchange interactions between ferro and antiferromagnetic films: Co on NiMn, a case study, article, December 31, 1997; Tennessee. (digital.library.unt.edu/ark:/67531/metadc696434/: accessed May 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.