Enhanced in-plane anisotropy of Tb-Fe thin films by Sm addition

Sang Ho Lim, S. H. Han, H. J. Kim, Y. S. Choi, T. Shima, H. Fujimori

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Abstract

Effects of Sm on the magnetic and magnetostrictive properties of Tb-Fe thin films are investigated. Four alloy systems, RxFe100-x (R=Tb+Sm) with x=39.8, 41.9, 43.7, and 45.8, are examined with Sm content varied from 0 (Sm free) to 2.2 at. %. In-plane anisotropy is found to be enhanced by the addition of Sm and the strongest in-plane anisotropy occurs in the Sm content range of 1 to 2 at. % depending on R content. At low magnetic fields of 1000 Oe and below, magnetostriction increases significantly with increasing Sm content, and reaches a maximum at an intermediate Sm content where well-developed in-plane anisotropy is observed. At higher magnetic fields of 3000-5000 Oe, however, no substantial improvement of magnetostriction occurs with the addition of Sm. The Sm content dependences of magnetization and coercive force are also examined.

Original languageEnglish
Pages (from-to)6244-6246
Number of pages3
JournalJournal of Applied Physics
Volume85
Issue number8 II B
Publication statusPublished - 1999 Apr 15
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Lim, S. H., Han, S. H., Kim, H. J., Choi, Y. S., Shima, T., & Fujimori, H. (1999). Enhanced in-plane anisotropy of Tb-Fe thin films by Sm addition. Journal of Applied Physics, 85(8 II B), 6244-6246.