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- Title
Analogue of a spin flop phase transition for an array of magnetic moments with dipole interaction.
- Authors
Galkin, A. Yu.; Ivanov, B. A.
- Abstract
In a two-dimensional array of magnetic moments with planar magnetization and relatively weak anisotropy in the basal plane, a stepwise phase transition is induced by an external magnetic field parallel to the easy axis of the system. This transition is similar to the spin flop phase transition in weakly anisotropic Heisenberg antiferromagnets with the significant difference that it is accompanied by the rearrangement of the sublattice structure of the magnet; i.e., it can be interpreted as a topological transition. The transition should manifest itself for arrays of submicron magnetic particles (magnetic dots) on nonmagnetic substrates, which have recently become the object of intensive research.
- Subjects
MAGNETIZATION; MAGNETIC fields; ANISOTROPY; PROPERTIES of matter; FERROMAGNETIC materials; TOPOLOGICAL dynamics
- Publication
JETP Letters, 2006, Vol 83, Issue 9, p383
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364006090049