Effect of Internal Stress Distribution on Magnetomechanical Damping
- 1 April 1968
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 39 (5) , 2311-2316
- https://doi.org/10.1063/1.1656551
Abstract
Magnetomechanical damping in ferromagnetic materials has its source in stress‐driven irreversible movement of magnetic domain boundaries. The maximum damping is proportional to λsE/σi, where λs is the saturation magnetostriction, E is Young's modulus, and σi is the average internal stress opposing domain boundary motion. In order to obtain the stress dependence of the damping, we include a distribution of internal stresses over a range ±Δσi about the average value. Inclusion of this distribution yields a theory in good quantitative agreement with experimental results for samples of 4% Si–Fe and cast iron.This publication has 8 references indexed in Scilit:
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