Acta Metallurgica Sinica (English Letters) >
Amorphous forming ability of Co-X(X=Cr, Mo, W) magnetic thin films
Received date: 2009-01-14
Revised date: 2009-03-27
Online published: 2009-12-16
Co-X(X=Cr, Mo, W) magnetic thin films were prepared by using DC magnetron sputtering, and their structures were examined by using X-ray diffraction (XRD). The amorphous forming ability (AFA) of the three alloy systems was discussed based on thermodynamic calculation and experiments. The results show that the Co-Mo thin films exhibit the largest AFA among them, and the Co-W thin films are condition-dependent amorphous while the Co-Cr thin films are hard to be amorphous, which is consistent with the thermodynamic calculation. The difference in AFA for the alloys of these three systems is finally ascribed to three main factors: differences in electronegativity, electron density and atomic size between Co and X elements.
Key words： Amorphous forming ability; Co-Cr; Co-Mo; Co-W
Gaowu QIN , Na XIAO , Bo YANG , Yuping REN , Wenli PEI , Xiang ZHAO . Amorphous forming ability of Co-X(X=Cr, Mo, W) magnetic thin films[J]. Acta Metallurgica Sinica (English Letters), 2009 , 22(6) : 415 -420 . DOI: 10.1016/S1006-7191(08)60117-9
[1] R. Hasegawa, J Non-crystal Solids 287 (2001) 405.
[2] R.E. Jones Jr, Acta Mater 46 (1998) 3805.
[3] A. Inoue, X.M. Wang and W. Zhang, Rev Adv Mater Sci 18(1) (2008) 1.
[4] K.J. Rao, S. Kumar and P. Vinatier, Solid State Comm 129 (2004) 631.
[5] G.W. Qin, B. Yang, N. Xiao, Y.P. Ren, M. Jiang, X. Zhao and K. Oikawa, Thin Solid Films 517 (2009) 2984.
[6] T. Matsumoto, New Materials (Maruzen Press, Tokyo,1987) p.187 (in Japanese).
[7] A.K. Niessen, A.R. Miedema, F.R. de Boer and R. Boom, Physica B 151 (1988) 401.
[8] B.S. Murty, S. Ranganathan and M.M. Rao, Mater Sci Eng A 149 (1992) 231.
[9] A.W. Weeber, J Phys F: Met Phys 17 (1987)809.
[10] Y. Maeda, M. Asahi and M. Seki, Jpn J Appl Phys 25 (1986) L668.
[11] Y. Maeda and M. Asahi, IEEE Trans Magn MAG-23 (1987) 2061.
[12] Japan Institute of Metals: Handbook of Metals (Maruzen Press, Tokyo, 2004) p.8 (in Japanese).
[13] H. Zhang and B. Zhang, Physica B 205 (1995)263.
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