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

doi:10.1016/j.msea.2006.02.373

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 journal › Article › peer-review

4 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 language	English
Pages (from-to)	378-381
Number of pages	4
Journal	Materials Science and Engineering A
Volume	448-451
DOIs	https://doi.org/10.1016/j.msea.2006.02.373
Publication status	Published - 2007 Mar 25
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the Ministry of Science and Technology through the Nanoscopia Research Center at Hanyang University. We are grateful to Professor Sung-Chul Shin and his graduate students for their kind assistance for the magnetostriction measurements.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

Magnetostriction
Sm-Fe thin film
SmFe

ASJC Scopus subject areas

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

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10.1016/j.msea.2006.02.373

Cite this

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title = "Magnetostrictive properties and microstructure of thermally annealed Sm-Fe thin films",

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.",

keywords = "Magnetostriction, Sm-Fe thin film, SmFe",

author = "Hwang, {Suk W.} and Jeon Kim and Lim, {Sang U.} and Kim, {C. K.} and Yoon, {C. S.}",

note = "Funding Information: This work was supported by the Ministry of Science and Technology through the Nanoscopia Research Center at Hanyang University. We are grateful to Professor Sung-Chul Shin and his graduate students for their kind assistance for the magnetostriction measurements. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.msea.2006.02.373",

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T1 - Magnetostrictive properties and microstructure of thermally annealed Sm-Fe thin films

AU - Hwang, Suk W.

AU - Kim, Jeon

AU - Lim, Sang U.

AU - Kim, C. K.

AU - Yoon, C. S.

N1 - Funding Information: This work was supported by the Ministry of Science and Technology through the Nanoscopia Research Center at Hanyang University. We are grateful to Professor Sung-Chul Shin and his graduate students for their kind assistance for the magnetostriction measurements. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2007/3/25

Y1 - 2007/3/25

N2 - 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.

AB - 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.

KW - Magnetostriction

KW - Sm-Fe thin film

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JO - Materials Science and Engineering A

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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