Dipolar field-induced spin-wave waveguides for spin-torque magnonics

作者：Demidov V E^*; Urazhdin S; Zholud A; Sadovnikov A V; Demokritov S O

来源：Applied Physics Letters, 2015, 106(2): 022403.

DOI：10.1063/1.4905869

We use high-resolution imaging to study the propagation of spin waves in magnonic waveguides created by the dipolar magnetic fields of microscopic patterns. We show that the characteristics of spin-wave modes in such waveguides depend strongly on their geometry. In particular, by tuning the geometrical parameters, field-induced confinement for both the edge and the center waveguide modes can be achieved, enabling control over the spin-wave transmission characteristics. The studied waveguiding structures are particularly promising for the implementation of magnonic devices utilizing spin-torque phenomena.

• 出版日期2015-1-12