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Change of D/Tc, Ratio During Heat Treatment of Fe90-xSixB10 Amorphous Alloy

Published online by Cambridge University Press:  26 February 2011

Wladyslaw Minor
Wladyslaw Minor*
Affiliation:
Physics Department, Purdue University, West Lafayette, IN 47907
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Abstract

The ferromagnetic transition temperature Tc for Fe-Si-B amorphous alloys with iron concentration exceeding 75 atomic percent changes monotonically with the annealing time. This change of Tc is accompanied by a drastic change of the magnetic excitation spectrum measured by means of low angle neutron inelastic scattering. It was observed that a small amount of α-Fe(Si) precipitated in an amorphous matrix during the heat treatment even at relatively low temperatures, leading to a decrease of the spin-wave stiffness constant D. Because at the same time T, increases, the D/Tc ratio (which is about 0.3 for “as quenched” Fe-Si-B system) decreases abruptly.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 80: Symposium G – Science and Technology of Rapidly Quenched Alloys , 1986 , 151
Copyright
Copyright © Materials Research Society 1987

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References

On leave from Institute of Experimental Physics, University of Warsaw, Warsaw, PolandGoogle Scholar
1. Minor, W., Scheonfeld, B., Lebech, B., Buras, B., W.Dmowski Acta Cryst A40 , 399 (1984)Google Scholar
2. Minor, W., Scheonfeld, B., Lebech, B., Buras, B., Dmowski, W. to be publishedGoogle Scholar
3. see e.g., Keffer, F., in Encyclopedia of Physics , (Springer, Berlin 1966) Vol.XVII-2 pp 49 Google Scholar
4. Minor, W., Lebech, B., Clausen, K., Dmowski, W. Proc. Conf. Rapidly Quenched Metals-5 ed by Steeb, S. and Warlimont, H. North Holland Publ. Co., Amsderdam 1985, p.1149 Google Scholar
5. Rhyne, J.J., Fish, G.E. and Lynn, J.W., J.Appl.Phys 53 , 2316 (1982)CrossRefGoogle Scholar
6. Rhyne, J.J., Lecture Notes from a Summer School on Magnetic Phase Transitions Erice, Sicily, July 1-13, 1983 Springer-Verlag ed. By Ausloos, M. and Elliott, R.J., 1984.Google Scholar
7. Ishikawa, Y., Yamada, K., Tajima, K., and Fukamichi, K., J.Phys.Soc. Japan 50 , 1958 (1981)CrossRefGoogle Scholar
8. Axe, J.D., Passell, L. and Tsuei, C.C., AIP Conf.Proc. 24 , 119 (1975)Google Scholar
9. Minor, W., Lebech, B., Clausen, K., W.Dmowski to be publishedGoogle Scholar
10. Minor, W., Malmhall, R., Roig, A., Inoue, A., Rao, K.V., MRS Symposium Rapidly Solidified Alloys and Their Mechanical and Magnetic Properties ed by Uiessen, B.C., Volk, D. E. and Taub, A.I., MRS Meeting Froc. 1985 vol 58p.109Google Scholar
11. Minor, W., Malmhall, R., Roig, A., Inoue, A., Rao, K.V., to be publishedGoogle Scholar
12. Munoz, J.S., Inoue, A., and Rao, K.V. EPS Condensed Matter Division Conference, Stockholm 1986 Google Scholar
13. Kaul, S.N. Phys. Rev. B24 , 6550 (1981)Google Scholar
14. Kaul, S.N. Phys. Rev. B27 , 5761 (1983)Google Scholar