Biskyrmions Lattices in Centrosymmetric Magnetic Films
| Autor: | Capic, Daniel, Garanin, Dmitry A., Chudnovsky, Eugene M. |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Phys. Rev. Research 1, 033011 (2019) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevResearch.1.033011 |
| Popis: | Abstract Theoretical framework is developed that explains biskyrmion lattices observed in non-chiral magnetic films. We study films of finite thickness containing up to $1000\times1000\times100$ spins. Hexatic biskyrmion lattices in a pure 2D exchange model are naturally described by the Weierstrass $\wp$ and $\zeta$ elliptic functions. Starting with such a lattice as an initial state we investigate how it evolves towards the minimum-energy state in the presence of perpendicular magnetic anisotropy and dipole-dipole interaction. In accordance with experiments, we find that the final state is a triangular lattice of biskyrmion bubbles containing Bloch lines. Comment: 7 PR pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1906.09202 |
| Databáze: | arXiv |
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