Predicting the future of permanent-magnet materials

Ralph Skomski, Priyanka Manchanda, Pankaj K. Kumar, B. Balamurugan, Arti Kashyap, D. J. Sellmyer

Research output: Contribution to journalArticlepeer-review

162 Scopus citations


There are two main thrusts towards new permanent-magnet materials: improving extrinsic properties by nanostructuring and intrinsic properties by atomic structuring. Theory - both numerical and analytical - plays an important role in this ambitious research. Our analysis of aligned hard-soft nanostructures shows that soft-in-hard geometries are better than hard-in-soft geometries and that embedded soft spheres are better than sandwiched soft layers. Concerning the choice of the hard phase, both a high magnetization and a high anisotropy are necessary. As an example of first-principle research, we consider interatomic Mn exchange in MnAl and find strongly ferromagnetic intralayer exchange, in spite of the small Mn-Mn distances.

Original languageEnglish (US)
Article number6558995
Pages (from-to)3215-3220
Number of pages6
JournalIEEE Transactions on Magnetics
Issue number7
StatePublished - 2013


  • Magnetic anisotropy
  • magnetization processes
  • permanent magnets

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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