Mössbauer study of vacuum annealed Fe100-xGax (10 less - than or equal to x less - than or equal to 35) thin films

• Autorzy: Szumiata T. , Górka B. , Brzózka K. , Gawroński M. , Gzik-Szumiata M. , Javed A. , Morley N. A. , Gibbs M. R. J.
• Konferencja: Proceedings of the 9th All - Polish Seminar on Mössbauer Spectroscopy OSSM'2012, 10-13 June 2012, Lublin - Kazimierz Dolny, Poland
• Języki publikacji: EN

Abstrakty

EN

This work reports results from comparative Mossbauer studies of as-deposited and annealed Fe100.xGax (10 less - than or equal to x less - than or equal to 35) high magnetostrictive thin films of constant thickness (50 plus or minus 2 nm). Films were grown on Si(100) substrates using a co-sputtering and evaporation chamber where Fe has been sputtered and Ga was evaporated. During growth of films, a magnetic field of 65 kA/m has been applied in the plane of the film. Annealed films have been obtained by heating in vacuum for 1 h at 350 centigrade without magnetic field. After annealing, the saturation field of the Fe-Ga films has been significantly reduced. By means of the 57Fe CEMS technique the contributions from several phases have been found: Fe-Ga A2 (bcc), traces of DO3 phase, a gallium-rich disordered phase and iron oxides (both geothite and magnetite). For the sample with x = 26.5 the heat treatment reduces the DO3 phase content whereas for the film with x = 16.4 the opposite tendency has been observed. Mossbauer results were compared with XRD and MOKE findings.

Słowa kluczowe

EN

Fe-Ga; thin films; CEMS; MOKE

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2013
• Tom: Vol. 58, No. 1
• Strony: 27--30
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Szumiata T.

autor

Górka B.

autor

Brzózka K.

autor

Gawroński M.

autor

Gzik-Szumiata M.

autor

Javed A.

autor

Morley N. A.

autor

Gibbs M. R. J.

• Technical University of Radom, Department of Physics, 54 Krasickiego Str., 26-600 Radom, Poland, Tel.: [phone], Fax: [phone],

Bibliografia

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