期刊
PHYSICAL REVIEW LETTERS
卷 117, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.117.227203
关键词
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资金
- Centers of Excellence
- BASAL/CONICYT
- CEDENNA [FB0807]
- Project FONDECYT [1161403]
- National Natural Science Foundation of China [11374203]
- Shanghai Key Laboratory of High Temperature Superconductors [14DZ2260700]
- Deutsche Forschungsgemeinschaft [SCHU 2922/1-1]
In magnonics, spin waves are conceived of as electron-charge-free information carriers. Their wave behavior has established them as the key elements to achieve low power consumption, fast operative rates, and good packaging in magnon-based computational technologies. Hence, knowing alternative ways that reveal certain properties of their undulatory motion is an important task. Here, we show using micromagnetic simulations and analytical calculations that spin-wave propagation in ferromagnetic nanotubes is fundamentally different than in thin films. The dispersion relation is asymmetric regarding the sign of the wave vector. It is a purely curvature-induced effect and its fundamental origin is identified to be the classical dipole-dipole interaction. The analytical expression of the dispersion relation has the same mathematical form as in thin films with the Dzyalonshiinsky-Moriya interaction. Therefore, this curvature-induced effect can be seen as a dipole-induced Dzyalonshiinsky-Moriya-like effect.
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