Abstract
Magnetostriction of amorphous Sm-Fe and Sm-Fe-B thin films is systematically investigated over a wide composition range from 14.1 to 71.7 at% Sm. In the case of Sm-Fe-B thin films, the amount of B is varied from 0.3 to 0.8 at%. Good magnetostrictive characteristics, particularly at low magnetic fields, are achieved in both Sm-Fe and Sm-Fe-B thin films, although better properties are observed in B containing Sm-Fe thin films. At a magnetic field of 100 Oe, for example, the magnitude of magnetostriction is -350 ppm in a Sm-Fe thin film and it is -470 ppm in a B containing Sm-Fe thin film. With their excellent magnetostrictive characteristics, the present Sm-Fe and Sm-Fe-B thin films are considered to be suitable for Si based microdevices.
Original language | English |
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Pages (from-to) | 1-7 |
Number of pages | 7 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 189 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1998 Oct 20 |
Externally published | Yes |
Bibliographical note
Funding Information:This work was supported by the Ministry of Science and Technology and the Ministry of Industry and Energy in Korea under the Micromachine Technology Development Program.
Keywords
- Amorphous
- B addition
- Magnetostriction - giant
- Sputtering
- Thin films - Sm-Fe
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics