Energy Method of Finding Distribution Constants of an Antiferromagnetic Vector for an Antidot System in a Two-sublattice Antiferromagnet

Authors V.V. Kulish , O.Yu. Gorobets

National Technical University of Ukraine “Kyiv Polytechnic Institute”, 37, Peremohy Pr., 03056 Kyiv, Ukraine

Issue Volume 7, Year 2015, Number 2
Dates Received 07 April 2015; published online 10 June 2015
Citation V.V. Kulish, O.Yu. Gorobets, J. Nano- Electron. Phys. 7 No 2, 02027 (2015)
PACS Number(s) 75.50.Ee, 41.20.Gz, 75.70.Ak
Keywords Antiferromagnet (2) , Magnetic thin film, Magnetic antidot, Magnetic energy, Antiferromagnetic vector.
Annotation The paper investigates the antiferromagnetic vector distribution in an antiferromagnetic film with a system of antidots. A static distribution of the antiferromagnetic vector is written and a method – based on the minimization of the antiferromagnet energy – that allows reducing the number of boundary conditions required for finding the constants of this distribution is proposed. Equations for the distribution constants are obtained for the both cases of minimizing the antiferromagnet energy by one and by two distribution constants that enter the expression for the antiferromagnet energy. The method is illustrated on a system of one isolated antidot. For such system, one additional condition – for the case when two boundary conditions on the surface of the antidot are given – and two additional conditions – for the case when one boundary condition on the surface of the antidot is given – on the distribution constants are written.

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