Spin wave propagation in a uniformly biased curved magnonic waveguide

This is the final version of the article. Available from American Physical Society via the DOI in this record.Using Brillouin light scattering microscopy and micromagnetic simulations, we study the propagation and transformation of magnetostatic spin waves across uniformly biased curved magnonic waveguides. Our results demonstrate that the spin wave transmission through the bend can be enhanced or weakened by modifying the distribution of the inhomogeneous internal magnetic field spanning the structure. Our results open up the possibility of optimally molding the flow of spin waves across networks of magnonic waveguides, thereby representing a step forward in the design and construction of the more complex magnonic circuitry.Structure fabrication and microwave measurements were supported by a grant from the Russian Science Foundation (Grant No. 16-19-10283). This work was also partially supported by the Russian Foundation for Basic Research (Grant No. 16-37-00217), the Scholarship and Grant of the President of RF (Grant No. SP-313.2015.5, MK-5837.2016.9), and the Engineering and Physical Sciences Research Council of the United Kingdom (Projects No. EP/L019876/1 and No. EP/P505526/1)