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Critical phenomena in FINEMET alloy |
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| Authors: | N Ponpandian A Narayanasamy D Prabhu K Ganesan M Manivel Raja K Chattopadhyay |
| Institution: | 1. Materials Science Centre, Department of Nuclear Physics, University of Madras, Guindy Campus, Chennai 600 025, India;2. Department of Physics, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli 627 012, India;3. Department of Metallurgy, Indian Institute of Science, Bangalore 560 012, India |
| Abstract: | The Fe73.5Cu1Nb3Si13.5B9 FINEMET alloy has been prepared by the rapid solidification technique. The critical behaviour of this alloy in the amorphous as well as in its nanocrystalline states has been studied near their respective Curie temperatures. From the values of the critical exponents one can conclude that the alloy behaves like a 3D Heisenberg ferromagnet in the amorphous and nanocrystalline states. But there exists a slight increase in the value of β for the alloy annealed at 823 K (the nanocrystalline state) as observed in most of the amorphous alloys. |
| Keywords: | 75 50 Kj 75 40 &minus s |
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