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Effects of process temperature on the microstructure and magnetic properties of electrodeposited Co-Pt alloy thin films  

Lee, C.H. (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Jeong, G.H. (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Park, J.K. (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Lee, K.K. (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Suh, S.J. (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
Abstract
Co-Pt alloy thin films were galvanostatically electrodeposited on Ru (30 nm)/Ta (5 nm)/Si (100) substrates from a amino-citrate based electrolyte. We used Ru(0002)-oriented buffer layers to control the crystallinity and orientation of the Co-Pt alloy thin films. The effect of solution temperature on the microstructure and magnetic properties of the Co-Pt alloy thin film was investigated. The samples were characterized by EDS, FESEM, XRD diffractometer using Cu $K{\alpha}$ radiation. The magnetic properties of these films were analyzed by a VSM and torque magnetometer. The Co-Pt alloy thin films were exhibited very high out-of-plane coercivity and squareness of the multilayer were 6527 Oe and 0.93, respectively, without heat treatment.
Keywords
Co-Pt; Galvanostatic; Electrodeposition; Crystallinity; Orientation;
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  • Reference
1 Y. Yamada, T. Suzuki and E. Noel Abarra, "Magnetic properties of electron beam evaporated CoPt alloy thin films", IEEE Trans. Magn. 34 (1998) 343   DOI   ScienceOn
2 I. Zana and G. Zangari, "Magnetic properties of electrodeposited Co-Pt thin films with very high perpendicular magnetic anisotropy", J. Magn. Magn. Mater. 272- 276 (2004) 1698   DOI   ScienceOn
3 Y. Yamada, T. Suzuki and E.N. Abarra, "Magnetic properties of electron beam evaporated CoPt alloy thin films", IEEE Trans. Magn. 33 (1997) 3622   DOI   ScienceOn
4 G. Zangari, P. Bucher, N. Lecis, P.L. Cavallotti, L. Callegaro and E. Puppin, "Magnetic properties of electroplated Co-Pt films", J. Magn. Magn. Mater. 157-158 (1996) 256   DOI   ScienceOn
5 R.L. White, R.M.H. New and R.F.W. Pease, "Patterned media: A viable route to 50 Gbit/in and up for magnetic recording?", IEEE Trans. Magn. 33 (1997) 990   DOI   ScienceOn
6 R. Skomski and J.M.D. Coey, "Permanent magnetism", Bristol U.K., Institute Physics (1999) ch. 5
7 Y. Yamada, T. Suzuki, G.L. Lauhoff and H. Kanazawa, "The origin of large perpendicular magnetic anisotropy observed in Co3Pt alloy thin films", IEEE Trans. Magn. 35 (1999) 2988   DOI   ScienceOn
8 H.S. Nalwa, "Magnetic nanostructures", American Scientific Publisher (2002) 68