Localization of magnon modes in a curved magnetic nanowire

Yuri Gaididei; Volodymyr P. Kravchuk; Franz G. Mertens; Oleksandr V. Pylypovskyi; Avadh Saxena; Denis D. Sheka; Oleksii M. Volkov

doi:10.1063/1.5041428

arXiv · 1801.06945

Localization of magnon modes in a curved magnetic nanowire

Yuri Gaididei·Volodymyr P. Kravchuk·Franz G. Mertens·Oleksandr V. Pylypovskyi·Avadh Saxena·Denis D. Sheka·Oleksii M. Volkov

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Abstract

Spin waves in magnetic nanowires can be bound by a local bending of the wire. The eigenfrequency of a truly local magnon mode is determined by the curvature: a general analytical expression is established for any infinitesimally weak localized curvature of the wire. The interaction of the local mode with spin waves, propagating through the bend, results in scattering features, which is well confirmed by spin-lattice simulations.

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Yuri Gaididei, Volodymyr P. Kravchuk, Franz G. Mertens, Oleksandr V. Pylypovskyi, Avadh Saxena, Denis D. Sheka, Oleksii M. Volkov. 2018-07-04. Localization of magnon modes in a curved magnetic nanowire. https://doi.org/10.1063/1.5041428

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