Parametric excitation and mode control using an Oersted field in a NiFe nanowire

Abstract Parametric pumping is a nonlinear wave phenomenon and promising technique for electronic devices based on spin waves, so-called “magnonics”. For parametric excitation, magnetic nanowire system that has built-in dc current line to produce an Oersted field designed, detection, micro-Brillouin light scattering (?-BLS) used. A with frequency of f sw = 5.6 GHz observed when microwave mw 11.2 applied. The found be the n 1 width mode ( antinode number), its changes edge-localized (or possibly > 1) current) varies. Joule heating effects are not in process. Thus, control by would convenient useful method enhance efficiency compatibility applications spin-based electronics.