Title :
Structural and Magnetic Properties of Amorphous and Nanocrystalline CoFeSiB Thin Films
Author :
Yoon, Jungbum ; Park, Seung-Young ; Jo, Younghun ; Jung, Myung-Hwa ; You, Chun-Yeol ; Kim, Taewan ; Hwang, Jae Youn ; Yim, Hae In ; Rhee, Jang Roh ; Chun, Byong Sun ; You Song Kim ; Young Keun Kim
Author_Institution :
Quantum Mater. Res. Team, Korea Basic Sci. Inst., Daejeon
fDate :
7/1/2008 12:00:00 AM
Abstract :
This study examined the structural, magnetic, and transport properties of CoFeSiB films with various Co compositions. The main focus was on two samples, amorphous Co74Fe4Si14B8 and nanocrystalline Co78Fe2Si12B8 thin films. The results show that the amorphous film is a typical soft magnetic material, while the nanocrystalline film has a large saturation field. It is believed that in a nanocrystalline thin film, a large saturation field is caused by antiferromagnetic exchange at the boundary between the amorphous and nanocrystalline phases.
Keywords :
amorphous magnetic materials; antiferromagnetic materials; boron alloys; cobalt alloys; exchange interactions (electron); iron alloys; magnetic thin films; nanostructured materials; silicon alloys; soft magnetic materials; Co74Fe4Si14B8; Co78Fe2Si12B8; CoFeSiB thin films; amorphous thin films; antiferromagnetic exchange; magnetic properties; nanocrystalline thin films; soft magnetic material; structural properties; transport properties; Amorphous; CoFeSiB thin film; amorphous; antiferromagnetic exchange coupling; nanocrystalline; nanocrystalline CoFeSiB thin film;
Journal_Title :
Nanotechnology, IEEE Transactions on
DOI :
10.1109/TNANO.2008.926334
