Evolution of the Fe-on-Ti and Ti-on-Fe interfaces under thermal treatment

THIN SOLID FILMS

卷:721

Article

Balogh, J.¹  Hegedus, L. G.¹  Kaptas, D.¹  Merkel, D. G.¹  Nakanishi, A.²  Nagy, D. L.¹ 

[1] Hungarian Acad Sci, Wigner Res Ctr Phys, POB 49, H-1525 Budapest, Hungary

[2] Shiga Univ Med Sci, Dept Phys, Shiga 5202192, Japan

关键词: Interface;    Alloy formation;    Mossbauer spectroscopy;   

DOI  :  10.1016/j.tsf.2021.138551

来源: Elsevier

【 摘 要 】

The different interface width and alloy composition of the Fe-on-Ti and Ti-on-Fe interfaces has been concluded recently from conversion-electron Mossbauer spectroscopy and x-ray reflectivity measurements of Ti/Fe-57/Ti trilayers. Now it is shown by Mossbauer spectroscopy analysis that the asymmetric interfaces of the as-prepared samples result in different evolution of the phase compositions at the two interfaces under heat treatments below 300 degrees C. Room temperature conversion-electron Mossbauer spectroscopy measurements indicate that at the Ti-on-Fe interface the amount of both the paramagnetic and magnetic alloy components increase while at the Fe-on-Ti interface the amount of the paramagnetic alloy increases at the expense of the magnetic alloy component. The results are explained by the different thickness of the magnetic alloy at the two interfaces and the consequently different degree of layer formation.

【 授权许可】

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