- Conference date: 29 Dec 1992 − 5 Jan 1993
- Location: Hyderabad, Andhra Pradesh (India)
High precision electrical resistivity (ρ) measurements are carried out on amorphous Fe80−x Ni x B20 (x=20, 40, 50, and 60) alloys in the temperature range 5 to 750 K. All the samples show a minimum in resistivity (ρmin) and the temperature (T min), at which ρmin occurs, lies in the temperature range 10–15 K. For T < T min, ρ shows logarithmic temperature dependence and above T min , ρ varies quadratically with temperature. Measurement of Curie (T c ) and crystallization (T x ) temperatures precedes Curie temperature and for other samples T c value decreases with increasing Ni concentration. A detailed data analysis, carried out in the light of existing theories with emphasis to magnetic contribution to total resistivity in these alloys, is presented and compared with the earlier results.
- Electrical resistivity
- Curie point
- Amorphous magnetic materials
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