The perminvar effect and magnetic after-effect in magnesium manganese ferrite |
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| Authors: | Jaromír Brož Svatopluk Krupička Bohumil Zítka |
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| Institution: | (1) Institute of Technical Physics, Czechosl. Acad. Sci., Prague |
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| Abstract: | An unstable perminvar effect was found in magnesium manganese ferrite at a temperature of –195°C and its connection with the magnetic after-effect was investigated. The analysis carried out on the basis of Néel's theory showed that both effects are a result of the same diffusion process. The experimental results also show that 180° Bloch walls are displaced when the sample is magnetized.
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        -           – 195° C  qe ,  ,    .    ,    - .  ,  180-  .
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