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Micromagnetic Modeling: Theory and Applications in Magnetic Thin Films

Published online by Cambridge University Press:  29 November 2013

Jian-Gang Zhu
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Extract

Micromagnetic theory concerns detailed magnetization configurations and the magnetization-reversal processes in a ferromagnetic system. By combining the original micromagnetic theory with a dynamic description of magnetization orientations, one can simulate complete magnetization processes and calculate important properties such as magnetic hysteresis and magnetic switching dynamics. Not only can micromagnetic simulation predict complex magnetic-domain configurations in a ferromagnetic system, it also can generate transient pictures showing how a complex domain configuration forms. Very important among these systems are ferromagnetic thin films, particularly those used in sensors and recording devices. Micromagnetic modeling not only has enriched our understanding of existing magnetic films but has also been used to successfully predict the magnetic properties of new film microstructures created for particular applications.

In this article, a brief introduction of micromagnetic-modeling theory will be given. Modeling of soft and hard magnetic films will be discussed separately through two examples illustrating the essence of micromagnetic-magnetization processes in these films.

Type
Magnetism on a Microscopic Scale
Information
MRS Bulletin , Volume 20 , Issue 10 , October 1995 , pp. 49 - 54
Copyright
Copyright © Materials Research Society 1995

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References

1.Brown, W.F. Jr., Micromagnetics (Interscience, New York, 1963).Google Scholar
2.Shtrikman, S. and Treves, D., in Magnetism, vol. 3, edited by Rado, G. and Suhl, H. (Academic Press, New York, 1963) p. 395.Google Scholar
3.Zhu, J-G. and Bertram, H.N., J. Appl. Phys. 63 (1988) p. 3248.CrossRefGoogle Scholar
4.Zhu, J-G., Interactive Phenomena in Magnetic Thin Films, PhD dissertation, University of California at San Diego (1989).Google Scholar
5.Bertram, H.N. and Zhu, J-G. in Solid State Physics, vol. 46, edited by Ehrenreich, H. and Turnbull, D. (Academic Press, San Diego, 1992) p. 271.Google Scholar
6.Chapman, J.N., Ferrier, R.P., Heyderman, L.J., McVitie, S., Nicholson, W.A.P., and Bormans, B., Inst. Phys. Conf. Ser. 138 (1993) p. 1.Google Scholar
7.Johnson, K., in Noise in Digital Magnetic Recording, edited by Arnoldussen, T.C. and Nunnelley, L.L. (World Scientific Publishing Co., Singapore, 1992) p. 7.CrossRefGoogle Scholar
8.Johnson, K.E., Ivett, P.R., Timmons, D.R., Mirzamaani, M., Lambert, S.E., and Yogi, T., J. Appl. Phys. 67 (1990) p. 4686.CrossRefGoogle Scholar
9.Wong, B.Y., Laughlin, D.E., and Lambeth, D.N., IEEE Trans. Magn. 27 (1991) p. 4733.CrossRefGoogle Scholar
10.Mirzamaani, M., Jahanes, C.V., and Russak, M.A., J. Appl. Phys. 69 (1991) p. 5169.CrossRefGoogle Scholar
11.Ye, X-G. and Zhu, J-G., J. Appl. Phys. 28 (1992) p. 3087.Google Scholar
12.Zhu, J-G., Ye, X-G., and Arnoldussen, T.C., J. Appl. Phys. 29 (1993) p. 324.Google Scholar
13.Min, T. and Zhu, J-G., J. Appl. Phys. 75 (1994) p. 6129.CrossRefGoogle Scholar
14.Inaba, N., Matsuda, Y., Suzuki, M., Nakamura, A., and Futamoto, M., J. Appl. Phys., 75 (1994) p. 6126.CrossRefGoogle Scholar
15.Ding, J. and Zhu, J-G., IEEE Trans. Magn. 30 (1994) p. 3978.CrossRefGoogle Scholar
16.Dahlberg, E.D. and Zhu, J-G., Phys. Today, Special Issue (April 1995) p. 34.Google Scholar