Domain Wall Pinning as a Source of Magnetic Hardening in Alloys
- 1 February 1972
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 43 (2) , 637-638
- https://doi.org/10.1063/1.1661169
Abstract
A simple formal model of domain wall pinning by inhomogeneities in ferromagnetic alloys is developed. Particular attention is paid to the variation of coercivity with temperature, and it is shown that the coercive field varies linearly with the temperature of observation for an idealized form of magnetic inhomogeneity. This linear variation is observed in PtCo and SmCo5 alloys and it is estimated that each inhomogeneity changes the wall energy by about 2 × 10−12 erg. The diameter of the inhomogeneities in SmCo5 is estimated to be about 34 Å.This publication has 9 references indexed in Scilit:
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