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Kink effect upon the electromagnetic generation of ultrasound in isotropic ferromagnets

  • Electrical and Magnetic Properties
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Abstract

The influence of the shape anisotropy on the field dependences of double electromagnetic-acoustic conversion in samples of an Invar alloy 29NK in the high-temperature range below the Curie point is experementally studied. It is shown that at a constant temperature the value of the polarizing field in which a jumplike generation of ultrasound occurs is determined by the demagnetizing factor of the sample, and the observed anomaly of the electromagnetic-acoustic conversion is caused by the kink effect.

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Authors and Affiliations

  1. Physicotechnical Institute, Ural Division, Russian Academy of Sciences, ul. Kirova 132, Izhevsk, 426000, Russia

    M. A. Borovkova, R. S. Il’yasov & N. V. Fedorova

Authors
  1. M. A. Borovkova
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  2. R. S. Il’yasov
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  3. N. V. Fedorova
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Additional information

Original Russian Text © M.A. Borovkova, R.S. Il’yasov, N.V. Fedorova, 2010, published in Fizika Metallov i Metallovedenie, 2010, Vol. 109, No. 4, pp. 383–386.

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Borovkova, M.A., Il’yasov, R.S. & Fedorova, N.V. Kink effect upon the electromagnetic generation of ultrasound in isotropic ferromagnets. Phys. Metals Metallogr. 109, 354–357 (2010). https://doi.org/10.1134/S0031918X10040071

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  • DOI: https://doi.org/10.1134/S0031918X10040071

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