Abstract
Rare earth and transition metal alloys are interesting magnetic materials for applications in the field of magnetooptical memories. We describe the preparation of Dy/Fe alloys by electrodeposition using a pulsed galvanostatic process. Samples were characterized by Mössbauer spectroscopy. Thin layers obtained with short electrolysis pulses (0.1 s) give a Mössbauer spectrum analysed as the sum of two subspectra: the first corresponds to a spectrum originating from very small sized particles of Fe and the second is attributed to a Dy/Fe phase. Longer electrolysis pulses (1 s) give samples whose spectrum is also the sum of two subspectra: the first is attributed to metallic Fe with an extended particle-size distribution while the second is attributed to a Fe/Dy alloy. Mössbauer spectroscopy was found useful in determining the best electrolysis parameters leading to domains of uniform magnetization with high coercive fields.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K.H.J. Buschow, G.J. Long and F. Grandjean, 'High Density Digital Recording', NATO ASI Series, Serie E: Applied Sciences, Vol. 229, (1994).
J.M. Cadogan, J. Phys. D: Appl. Phys. 29 (1996) 2246.
C.E. Johnson, J. Phys. D: Appl. Phys. 29 (1996) 2266.
Y. Sakurai and K. Saiki, Perpendicular Magnetization Film and its Production. European Patent 0 164 725 B1 (1989).
U. Kullman, E. Koester and C. Dorsch, IEEE Trans. Magn. MAG-20(2) (1994) 420-424.
Y. Sato, H. Ishida, K. Kobayakawa and Y. Abe, Chem. Lett. (1990) 1471-1474.
Y. Matsuda, T. Fujii, N. Yoshimoto and M. Morita, J. Alloys Compd. 193 (1993) 23-25.
Y. Sato, T. Takazawa, M. Takahashi, H. Ishida and K. Kobayakawa, Plat. Surf. Finish. (1993) 72-74.
N. Usuzaka, H. Yamaguchi and T. Watanabe, Mater. Sci. Eng. 99 (1988) 105-108.
D. Leroy, L. Martinot, C. Licour, C. Jérome, H. Zhan and D. Strivay, J. Chim. Phys. 95 (1998) 1491-1493.
A. Muir, K. Ando and H. Coogan, 'Mössbauer Effect Data Index 1958–1965', (Interscience Publishers, New York, 1965).
N. Holstein and K. Jüttner, Electrochemical Society Proceedings, Vol. 97-27 pp. 240-251.
A.J. Dekker, 'Hyperfine Interactions' (Academic Press, New York, 1967).
H. Herpin, 'Théorie du Magnétisme' (Presses universitaires de France, Paris, 1968).
G.K. Wertheim and J.H. Wernick, Phys. Rev. 125 (1962) 1937-1940.
M. Eibschutz, G. Gorodetsky, S. Shtrikman and D. Treves, J. Appl. Phys. 35 (1964) 1071-1072.
G. Shirane, D. Cox and S. Ruby, Phys. Rev. 125 (1962) 1158-1165.
'Handbook of Chemistry' (CRC Press, Boca Raton 60th edn, 1979).
R. Winand, Electrochim. Acta. 39 (1994) 1091-1105.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Licour, C., Gérard, A., Jérôme, C. et al. Characterization of electrodeposited thin layers of magnetic alloys by Mössbauer spectroscopy. Journal of Applied Electrochemistry 31, 935–940 (2001). https://doi.org/10.1023/A:1017978618783
Issue Date:
DOI: https://doi.org/10.1023/A:1017978618783