Anisotropic magneto-crystalline coupling of the skyrmion lattice in MnSi
arXiv:1712.05479 · doi:10.1103/PhysRevB.97.104423
Abstract
We investigate the anisotropic nature of magnetocrystalline coupling between the crystallographic and skyrmion crystal (SKX) lattices in the chiral magnet MnSi by magnetic field-angle resolved resonant ultrasound spectroscopy. Abrupt changes are observed in the elastic moduli and attenuation when the magnetic field is parallel to the [011] crystallographic direction. These observations are interpreted in a phenomenological Ginzburg-Landau theory that identifies switching of the SKX orientation to be the result of an anisotropic magnetocrystalline coupling potential. Our paper sheds new light on the nature of magnetocrystalline coupling potential relevant to future spintronic applications.
arXiv comment6+4 pages, 5+3 figures
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- Topological energy barrier for skyrmion lattice formation in MnSi
- Rapid Method for Computing the Mechanical Resonances of Irregular Objects
- Comparison of skyrmion phases between poly and single-crystal MnSi by composite magnetoelectric method
- Long-wavelength emergent phonons in skyrmion crystals distorted by exchange anisotropy and tilted magnetic fields
- Cubic magnetic anisotropy in 20 magnets: Interplay of anisotropy and magnetic order in FeCoSi