Magnetic properties and Mössbauer spectra of sputtered Fe‐Al‐Si‐Ni supersendust films

Autor:	Kensuke Nakajima, Shoichi Okamoto, Kazumasa Matusita, Takayuki Komatsu, Masahiro Miyazaki, Masashi Ichikawa
Rok vydání:	1991
Předmět:	Materials science Mössbauer effect Electrical resistivity and conductivity Magnetism Sputtering Annealing (metallurgy) Conversion electron mössbauer spectroscopy Metallurgy Analytical chemistry General Physics and Astronomy Thin film Coercivity
Zdroj:	Journal of Applied Physics. 69:7207-7214
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.347614
Popis:	Fe‐Al‐Si‐Ni supersendust films containing 2.7 at. % Ni atoms with a thickness of 1 μm were deposited on crystallized‐glass substrates by rf planar magnetron sputtering, and the changes in magnetic properties and structure due to the sputtering conditions and annealing were examined. The films with excellent soft magnetic properties and high magnetic‐flux density which are good candidates for new recording‐head materials were obtained by annealing as‐deposited films at 500 °C. It was found through conversion electron Mossbauer spectroscopy (CEMS) that the disordered structure of α type in as‐sputtered films transformed into the ordered structure consisting of a mixture of B2 and DO3 types at the temperature of 500 °C. The CEMS studies also revealed that Ni atoms are located at the corner in the bcc structure.
Databáze:	OpenAIRE
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