Prediction of the new efficient permanent magnet SmCoNiFe3

Soderlind, P.; Landa, A.; Locht, I. L. M.; Aberg, D.; Kvashnin, Y.; Pereiro, M.; Dane, M.; Turchi, P. E. A.; Antropov, V. P.; Eriksson, O.

doi:10.1103/PhysRevB.96.100404

Title: Prediction of the new efficient permanent magnet ${SmCoNiFe}_{3}$

Journal Article · 14 September 2017 · Physical Review B

DOI: https://doi.org/10.1103/PhysRevB.96.100404 · OSTI ID:1415550

Soderlind, P. ^[1]; Landa, A. ^[1]; Locht, I. L. M. ^[2]; Aberg, D. ^[1]; Kvashnin, Y. ^[2]; Pereiro, M. ^[2]; Dane, M. ^[1]; Turchi, P. E. A. ^[1]; Antropov, V. P. ^[3]; Eriksson, O. ^[2]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Uppsala Univ., Uppsala (Sweden)
Ames Lab., Ames, IA (United States)

Here, 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.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1415550

Alternate ID(s):: OSTI ID: 1390377

Report Number(s):: LLNL-JRNL-717280; PRBMDO; TRN: US1800834

Journal Information:: Physical Review B, Vol. 96, Issue 10; ISSN 2469-9950

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 30 works

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Exchange Interactions and Curie Temperature of Ce-Substituted SmCo5 Jekal, Soyoung Condensed Matter, Vol. 4, Issue 1 https://doi.org/10.3390/condmat4010011	journal	January 2019
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