Extended elliptic skyrmion gratings in epitaxial MnSi thin films
Wilson, M. N. · Karhu, E. A. · Quigley, A. S. · Rößler, U. K. · Butenko, A. B. · Bogdanov, A. N. · Robertson, M. D. · Monchesky, T. L.
Original · EN
A detailed investigation of the magnetization processes in epitaxial MnSi thin film reveals the existence of elliptically distorted skyrmion strings that lie in the plane of the film. We provide proof that the uniaxial anisotropy stabilizes this state over extended regions of the magnetic phase diagram. Theoretical analysis of an observed cascade of first-order phase transitions is based on rig- orous numerical calculations of competing chiral modulations, which shows the existence of helicoids, elliptic skyrmions, and cone phases.
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