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 journalArticle

107 Citations (Scopus)

Abstract

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
Volume49
Issue number7
DOIs
StatePublished - Aug 2 2013

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Permanent magnets
Geometry
Nanostructures
Magnetization
Anisotropy

Keywords

  • Magnetic anisotropy
  • magnetization processes
  • permanent magnets

ASJC Scopus subject areas

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

Cite this

Skomski, R., Manchanda, P., Kumar, P. K., Balamurugan, B., Kashyap, A., & Sellmyer, D. J. (2013). Predicting the future of permanent-magnet materials. IEEE Transactions on Magnetics, 49(7), 3215-3220. [6558995]. https://doi.org/10.1109/TMAG.2013.2248139

Predicting the future of permanent-magnet materials. / Skomski, Ralph; Manchanda, Priyanka; Kumar, Pankaj K.; Balamurugan, B.; Kashyap, Arti; Sellmyer, D. J.

In: IEEE Transactions on Magnetics, Vol. 49, No. 7, 6558995, 02.08.2013, p. 3215-3220.

Research output: Contribution to journalArticle

Skomski, R, Manchanda, P, Kumar, PK, Balamurugan, B, Kashyap, A & Sellmyer, DJ 2013, 'Predicting the future of permanent-magnet materials', IEEE Transactions on Magnetics, vol. 49, no. 7, 6558995, pp. 3215-3220. https://doi.org/10.1109/TMAG.2013.2248139
Skomski R, Manchanda P, Kumar PK, Balamurugan B, Kashyap A, Sellmyer DJ. Predicting the future of permanent-magnet materials. IEEE Transactions on Magnetics. 2013 Aug 2;49(7):3215-3220. 6558995. https://doi.org/10.1109/TMAG.2013.2248139
Skomski, Ralph ; Manchanda, Priyanka ; Kumar, Pankaj K. ; Balamurugan, B. ; Kashyap, Arti ; Sellmyer, D. J. / Predicting the future of permanent-magnet materials. In: IEEE Transactions on Magnetics. 2013 ; Vol. 49, No. 7. pp. 3215-3220.
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