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

Suk W. 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

Keywords

  • Magnetostriction
  • Sm-Fe thin film
  • SmFe

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Magnetostrictive properties and microstructure of thermally annealed Sm-Fe thin films'. Together they form a unique fingerprint.

  • Cite this