The influence of individual lattice defects on the domain structure in magnetic antidot lattices
Abstract
We numerically and experimentally investigate the influence of single defects consisting of a missing antidot on the spin configurations in rectangular permalloy antidot lattices. The introduction of such lattice defects leads to the nucleation of complex domain structures after the decay of a saturating magnetic field. Micromagnetic simulations yield four typical domain configurations around the defect having distinct energy densities. The existence of the four spin configurations is confirmed by magnetic force microscopy on antidot lattices containing individual defects.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- March 2013
- DOI:
- 10.1063/1.4795147
- arXiv:
- arXiv:1204.1183
- Bibcode:
- 2013JAP...113j3907H
- Keywords:
-
- crystal defects;
- magnetic domains;
- magnetic force microscopy;
- micromagnetics;
- nucleation;
- Permalloy;
- quantum dots;
- spin systems;
- 75.60.Ch;
- 75.25.-j;
- 61.72.-y;
- Domain walls and domain structure;
- Defects and impurities in crystals;
- microstructure;
- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 21 pages, 6 figures