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Surface distortions of the magnetic structure of a uniaxial antiferromagnet: The “magnetic field-roughness” phase diagram

  • Magnetism and Ferroelectricity
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Abstract

Magnetic-structure distortions induced by an external magnetic field near a rough surface of a uniaxial collinear antiferromagnet are analyzed using mathematical modeling. The “magnetic field-roughness” phase diagram of these distortions is constructed. It is demonstrated that, under specific conditions, the presence of atomic steps leads to the formation of domains in the surface layer of the antiferromagnet. In the case of a strong roughness, there arise static vortices at the surface and a 90° domain wall aligned parallel to the surface of the antiferromagnet.

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Authors and Affiliations

  1. Moscow State Institute of Radioengineering, Electronics, and Automation, Technical University, pr. Vernadskogo 78, Moscow, 119454, Russia

    A. I. Morosov, I. A. Morosov & A. S. Sigov

Authors
  1. A. I. Morosov
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  2. I. A. Morosov
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  3. A. S. Sigov
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Additional information

Original Russian Text © A.I. Morosov, I.A. Morosov, A.S. Sigov, 2006, published in Fizika Tverdogo Tela, 2006, Vol. 48, No. 10, pp. 1798–1804.

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Morosov, A.I., Morosov, I.A. & Sigov, A.S. Surface distortions of the magnetic structure of a uniaxial antiferromagnet: The “magnetic field-roughness” phase diagram. Phys. Solid State 48, 1909–1916 (2006). https://doi.org/10.1134/S1063783406100167

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  • DOI: https://doi.org/10.1134/S1063783406100167

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