Engineering domain structures in nanoscale magnetic thin films via strain

Hu, Jia-Mian; Yang, T. N.; Chen, L. Q.; Nan, C. W.
October 2013
Journal of Applied Physics;Oct2013, Vol. 114 Issue 16, p164303
Academic Journal
We study the strain effects on magnetic domain stability and dynamics in nanoscale magnetic thin films using phase-field simulations. Numerous strain-stabilized single-/multi-domain states are discovered, including various magnetic vortices with circular in-plane domains. Furthermore, a strain-domain stability map was constructed, displaying the stable magnetic domain and domain wall structures as a function of biaxial isotropic and anisotropic in-plane strains at room temperature. The present work provides useful guidelines for a precise engineering and experimental observation of domain structures in nanoscale magnetic thin films and a promising scheme towards a low-power and local control over magnetic domain structures.


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