Self-organization of topological defects for a triangular-lattice magnetic dots array subject to a perpendicular magnetic field

The regular array of magnetic particles (magnetic dots) of the form of a two-dimensional triangular lattice in the presence of external magnetic field demonstrates complicated magnetic structures. The magnetic symmetry of the ground state for such a system is lower than that for the underlying latti...

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Bibliographic Details
Main Authors: R.S. Khymyn, V.E. Kireev, B.O. Ivanov
Format: Article
Language:English
Published: Institute for Condensed Matter Physics 2014-09-01
Series:Condensed Matter Physics
Subjects:
Online Access:http://dx.doi.org/10.5488/CMP.17.33701
Description
Summary:The regular array of magnetic particles (magnetic dots) of the form of a two-dimensional triangular lattice in the presence of external magnetic field demonstrates complicated magnetic structures. The magnetic symmetry of the ground state for such a system is lower than that for the underlying lattice. Long range dipole-dipole interaction leads to a specific antiferromagnetic order in small fields, whereas a set of linear topological defects appears with the growth of the magnetic field. Self-organization of such defects determines the magnetization process for a system within a wide range of external magnetic fields.
ISSN:1607-324X