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Journal of Applied Physics / Volume 111 / Issue 7 / PROCEEDINGS OF THE 56TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS / Magneto-Optic, Magnetoelastic, and Magnetocaloric Materials

J. Appl. Phys. 111, 07A901 (2012); http://dx.doi.org/10.1063/1.3669914 (3 pages)

Effect of Mn substitution for Fe on magnetic and magnetostrictive properties of SmFe2 compound

Y. Wang, W. J. Ren, Z. H. Wang, Y. Q. Zhang, J. Li, and Z. D. Zhang

Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China

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(Received 1 September 2011; accepted 21 September 2011; published online 3 February 2012)

The structural, magnetic, and magnetostrictive properties of Sm(Fe1−xMnx)2 (0 ≤ x ≤ 0.20) alloys have been investigated. The alloys are almost single phase cubic Laves Sm(Fe, Mn)2 when x ≤ 0.15. The lattice parameter increases and Curie temperature and the magnetization at 295 K decrease with increasing Mn content of the Sm(Fe1−xMnx)2 compounds. The spin-reorientation temperature for ⟨110⟩ to ⟨111⟩ of Sm(Fe1−xMnx)2 decreases from 200 K for x = 0 to 140 K for x = 0.15, indicating the increasing anisotropy of the Mn-substituted compounds. The magnetostriction coefficient λ111 of the Sm(Fe1−xMnx)2 compounds slightly decreases with Mn substitution and maintains a value larger than 1900 ppm for 0 ≤ x ≤ 0.15. The linear anisotropic magnetostriction λa = λ‖ − λ⊥ for the Sm(Fe1−xMnx)2 alloys decreases with increasing Mn content, which may be ascribed to the decrease of λ111 and the increased anisotropy.

© 2012 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL PROCEDURE
  3. RESULTS AND DISCUSSION
  4. CONCLUSION

KEYWORDS, PACS, and IPC

Keywords

Curie temperature, iron alloys, lattice constants, magnetic anisotropy, magnetostriction, manganese alloys, samarium alloys, spin dynamics

PACS

  • 75.80.+q

    Magnetomechanical effects, magnetostriction

  • 75.60.Ej

    Magnetization curves, hysteresis, Barkhausen and related effects

  • 75.40.Gb

    Dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.)

  • 75.30.Kz

    Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)

  • 61.66.Dk

    Alloys

  • 75.30.Gw

    Magnetic anisotropy

International Patent Classification (IPC)

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3669914

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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