Article Dans Une Revue Physical Review B Année : 2026

Experimental determination and micromagnetic analysis of spin wave modes in cylindrical nanowires

Résumé

We report an experimental study of spin wave modes in individual cylindrical nanowires, a textbook situation of confined spin waves in 3D nanomagnetism. We observe discrete modes of thermal spin waves with micro-Brillouin light scattering, whose frequencies f shift to higher values as the applied longitudinal induction magnetic field Bz increases. Micromagnetic simulations allowed us to associate every f(Bz) curve to a given spatial mode, labeled with radial and azimuthal indices ℓ and m.

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hal-05231476 , version 1 (30-08-2025)

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Niklas Martin, Laura Álvaro-Gómez, Lucas Pérez, André Thiaville, Jean-Paul Adam, et al.. Experimental determination and micromagnetic analysis of spin wave modes in cylindrical nanowires. Physical Review B, 2026, 113 (13), pp.134423. ⟨10.1103/7gwp-twyl⟩. ⟨hal-05231476⟩
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