Magnetostrictive properties and microstructure of thermally annealed Sm-Fe thin films

Suk-Won Hwang, Jeon Kim, Sang U. Lim, C. K. Kim, C. S. Yoon

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Polycrystalline Sm-Fe thin films were fabricated by annealing sputter-deposited Sm-Fe thin films. Although the annealing of the as-deposited Sm-Fe film tends to precipitate Fe grains, leading to a non-uniform microstructure and low magnetostriction coefficient, the thermal annealing performed in multiple steps produced a relatively large fraction of SmFe2 with uniform grain size. The Sm-Fe thin film annealed at 400, 500, and 600 °C for 1 h at each step produced the highest magnetostriction coefficient in this study; -57 ppm at an applied field of 2.5 kOe.

Original languageEnglish
Pages (from-to)378-381
Number of pages4
JournalMaterials Science and Engineering A
Volume448-451
DOIs
Publication statusPublished - 2007 Mar 25
Externally publishedYes

Fingerprint

Magnetostriction
Annealing
magnetostriction
Thin films
microstructure
Microstructure
annealing
thin films
coefficients
Precipitates
precipitates
grain size
Hot Temperature

Keywords

  • Magnetostriction
  • Sm-Fe thin film
  • SmFe

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Magnetostrictive properties and microstructure of thermally annealed Sm-Fe thin films. / Hwang, Suk-Won; Kim, Jeon; Lim, Sang U.; Kim, C. K.; Yoon, C. S.

In: Materials Science and Engineering A, Vol. 448-451, 25.03.2007, p. 378-381.

Research output: Contribution to journalArticle

Hwang, Suk-Won ; Kim, Jeon ; Lim, Sang U. ; Kim, C. K. ; Yoon, C. S. / Magnetostrictive properties and microstructure of thermally annealed Sm-Fe thin films. In: Materials Science and Engineering A. 2007 ; Vol. 448-451. pp. 378-381.
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