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The modulated magnetic structure of α-Fe2O3: Ga weak ferromagnet

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Abstract

The domain structure of a diluted weak α-Fe2O3: Ga ferromagnet is considered. Magnetic fields of specific amplitudes and orientations applied in the basal plane of the crystal are found to produce nonuniform magnetic states due to a periodic deviation of the antiferromagnetic vector from the easy axis of crystallographic anisotropy. A phase diagram of the modulated magnetic state with the triad axis is constructed, and a dependence of the spatial period of modulation on an external magnetic field is studied. A phenomenological model and the nature of the magnetic superstructure discovered are discussed.

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Authors and Affiliations

  1. Tashkent State University, Universitetskaya ul. 95, Vuzgorodok, Tashkent, 700095, Uzbekistan

    Z. T. Azamatov, A. A. Karaev & B. Yu. Sokolov

  2. Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia

    Yu. M. Fedorov

Authors
  1. Z. T. Azamatov
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  2. A. A. Karaev
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  3. B. Yu. Sokolov
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  4. Yu. M. Fedorov
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__________

Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 71, No. 3, 2001, pp. 84–87.

Original Russian Text Copyright © 2001 by Azamatov, Karaev, Sokolov, Fedorov.

Deceased.

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Azamatov, Z.T., Karaev, A.A., Sokolov, B.Y. et al. The modulated magnetic structure of α-Fe2O3: Ga weak ferromagnet. Tech. Phys. 46, 354–356 (2001). https://doi.org/10.1134/1.1356491

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  • DOI: https://doi.org/10.1134/1.1356491

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