Switching behavior and novel stable states of magnetic hexagonal nanorings

Micromagnetic simulations for Cobalt hexagonal shape nanorings show onion (O) and vortex state (V) along with new state named “tri-domain state”. The tri-domain state is observed in sufficiently large width of ring. The magnetic reversible mechanism and transition of states are explained with help o...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2017-06, Vol.432, p.1-9
Main Authors: Yasir Rafique, M., Pan, Liqing, Guo, Zhengang
Format: Article
Language:English
Subjects:
Cobalt
Domain walls
Magnetic nanorings
Magnetic states
Magnetism
Micromagnetic simulation
Propagation
Switching
Vortices
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Summary:Micromagnetic simulations for Cobalt hexagonal shape nanorings show onion (O) and vortex state (V) along with new state named “tri-domain state”. The tri-domain state is observed in sufficiently large width of ring. The magnetic reversible mechanism and transition of states are explained with help of vector field display. The transitions from one state to other occur by propagation of domain wall. The vertical parts of hexagonal rings play important role in developing the new “tri-domain” state. The behaviors of switching fields from onion to tri-domain (HO-Tr), tri-domain to vortex state (HTr--V) and vortex to onion state and “states size” are discussed in term of geometrical parameter of ring.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2016.11.103