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Spin waves scattering on a Bloch point

Abstract : We show that, after a transformation, the dynamics of linear perturbations (spin waves) around a singular Bloch point soliton is formally equivalent to a quantum system of an electron in a magnetic monopole field. The analytical solution to this problem is known and allows us to find the spectrum and the scattering of a wave in a Bloch point field.
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R G Elías, V L Carvalho-Santos, A Núñez, Alberto Verga. Spin waves scattering on a Bloch point. Physical Review B: Condensed Matter and Materials Physics, American Physical Society, 2014, 90, pp.224414 - 224414. ⟨10.1103/PhysRevB.90.224414⟩. ⟨hal-01500482⟩

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