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Prediction of the new efficient permanent magnet SmCoNiFe3
Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94551 USA..
Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94551 USA..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94551 USA..
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2017 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 96, no 10, article id 100404Article in journal (Refereed) Published
Abstract [en]

We propose a new efficient permanent magnet, SmCoNiFe3, which is a development of the well-known SmCo5 prototype. More modern neodymium magnets of the Nd-Fe-B type have an advantage over SmCo5 because of their greater maximum energy products due to their iron-rich stoichiometry. Our new magnet, however, removes most of this disadvantage of SmCo5 while preserving its superior high-temperature efficiency over the neodymium magnets. We show by means of first-principles electronic-structure calculations that SmCoNiFe3 has very favorable magnetic properties and could therefore potentially replace SmCo5 or Nd-Fe-B types in various applications.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2017. Vol. 96, no 10, article id 100404
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Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-336052DOI: 10.1103/PhysRevB.96.100404ISI: 000410861200002OAI: oai:DiVA.org:uu-336052DiVA, id: diva2:1164813
Funder
Swedish Research CouncileSSENCE - An eScience CollaborationKnut and Alice Wallenberg Foundation, 2012.0031, 2013.0020Available from: 2017-12-12 Created: 2017-12-12 Last updated: 2017-12-12Bibliographically approved

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Kvashnin, YaroslavPereiro, ManuelEriksson, Olle

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