A periodic disturbance in local ferromagnetic ordering can propagate in a magnetic material in the form of a wave called a spin wave or a magnon. “Magnonics” is a field of research for the forthcoming beyond CMOS era; it harnesses magnons to transmit and process information using sophisticated spin wave devices and conduits. The standard spin wave conduits rely on spin waves in in-plane magnetized materials. There the spin waves are difficult to guide in curved conduits because of their anisotropic dispersion properties. Besides, miniaturization to deep sub-micron dimensions is a challenge as spin waves are sensitive to structural changes such as lithography-induced roughness at the conduit edges.