Magnetic aftereffects and the barkhausen effect in a magnesium manganese ferrite single crystal |
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Authors: | V F Pavlov A I Drokin |
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Institution: | 1. Krasnoyarsk State University, USSR
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Abstract: | The temperature dependence of the critical magnetic field H0(T)] of a magnesium manganese ferrite single crystal is analyzed, together with the changes taking place in the critical magnetic field with time, H0(t), the temperature dependence of the domain-boundary stabilization field Hst(T), and the time required to establish the equilibrium state of the domain boundaries; the domain structure is examined, and the induced anisotropy constant is calculated; so is the activation energy of the process leading to the stabilization of the domain boundaries. The magnetic aftereffects and the Barkhausen jumps accompanying them are of a diffusion nature. |
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