کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1617750 | 1005693 | 2011 | 8 صفحه PDF | دانلود رایگان |
Differential scanning calorimetry, hysteresis measurements, X-ray diffraction, Mössbauer spectroscopy and transversal Kerr effect have been used to study the thickness and temperature dependence of magnetic properties and crystalline state of Fe84Zr3.5Nb3.5B8Cu1 (at.%) thin films. Results indicate that a decrease of the saturation magnetization with increasing film thickness can be ascribed to the presence of a crystalline α-Fe phase at the early stages of film growth, followed by the deposition of the amorphous alloy. Thinner films, which have a significant crystalline phase in the as-prepared state, display less prominent crystallization features, whereas thicker films, with a significant amorphous phase in the as-prepared state, are characterized by much more pronounced crystallization effects, that are confirmed by Mössbauer and Transversal Kerr Effect measurements. Progressive thinning of a film by means of sputter etching allows to reduce the amorphous component, leading to the expected increase of saturation magnetization as the thickness decreases.
Research highlights▶ Detailed structural and magnetic investigation of FeZrNbBCu thin films. ▶ Evolution of microstructure in the early stages of films growth. ▶ Study of the crystallization processes in FeZrNbBCu sputtered thin films.
Journal: Journal of Alloys and Compounds - Volume 509, Issue 14, 7 April 2011, Pages 4688–4695