Distribution of the Antiferromagnetism Vector for an Isolated Antidot and a System of Remote Antidots in Antiferromagnets

Authors

  • Юрій Іванович Горобець Institute of Magnetism, National Academy of Sciences of Ukraine, NTUU KPI, Ukraine
  • Оксана Юріївна Горобець NTUU KPI, Institute of Magnetism, National Academy of Sciences of Ukraine., Ukraine
  • Володимир Вікторович Куліш NTUU KPI, Ukraine

DOI:

https://doi.org/10.20535/1810-0546.2014.4.27296

Keywords:

Antiferromagnet, Thin magnetic film, Antidot, Antiferromagnetic vector

Abstract

In the paper, an antiferromagnetism vector distribution in an antiferromagnetic film composed of an uniaxial or isotropic two-sublattice antiferromagnet with a set system of circular antidots is investigated. For such a system, the Landau-Lifshitz equation is written and its solution is obtained. An antiferromagnetism vector distribution is found for three isolated antidot cases (in isotropic antiferromagnet, in “easy plane” antiferromagnet, in “easy axis” antiferromagnet) with vortex-type boundary conditions on the antidot surface and three cases of remote antidotes system (in isotropic antiferromagnet, in “easy plane” antiferromagnet and in “easy axis” antiferromagnet) with vortex-type boundary conditions on the surface of one of the antidots. It is shown that the plane distribution of the antiferromagnetism vector on at least one cross-section of one of the antidots is possible only in the case of the antidots remoteness.

Author Biographies

Юрій Іванович Горобець, Institute of Magnetism, National Academy of Sciences of Ukraine, NTUU KPI

Deputy Director of the Institute of Magnetism, National Academy of Sciences of Ukraine, head of department at the NTUU KPI

Оксана Юріївна Горобець, NTUU KPI, Institute of Magnetism, National Academy of Sciences of Ukraine.

professor at the NTUU KPI, senior research fellow at the Institute of Magnetism, National Academy of Science of Ukraine.

Володимир Вікторович Куліш, NTUU KPI

postdoctoral student at the NTUU KPI

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Published

2014-08-20

Issue

No. 4 (2014): Physics and Mathematics

Section

Art

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