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Structural and magnetic properties of amorphous and nanocrystalline CoFeSiB thin films

Authors
Yoon J.Park S.-Y.Jung M.-H.You C.-Y.Chun B.S.Kim Y.S.Kim Y.K.Kim S.S.Hwang J.Y.Rhee J.R.Kim T.
Issue Date
Oct-2006
Publisher
IEEE
Keywords
Amorphous; CoFeSiB thin film; Magnetic property; Nanocrystalline; Structure; Transport property
Citation
2006 IEEE Nanotechnology Materials and Devices Conference, NMDC, v.1, pp 388 - 389
Pages
2
Journal Title
2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Volume
1
Start Page
388
End Page
389
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/15416
DOI
10.1109/NMDC.2006.4388780
Abstract
We have studied the structural, magnetic, and transport properties of CoFeSiB films with various Co compositions. Here, we focus on two amorphous Co 74 Fe 4 Si 14 B 8 and nanocrystalline Co 78 Fe 2 Si 12 B 8 thin films. Our results show that the amorphous film is a typical soft magnetic material, while the nanocrystalline film has a large saturation field. We conjecture that in the nanocrystalline film, the super-paramagnetism of nanocrystalline phase or antiferromagnetic exchange at the boundary between the amorphous and nanocrystalline phases causes the large saturation field.
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