Modeling Static and Dynamic Properties of Magnetic Nanowire Arrays using MuMax³

We simulated first order reversal curves (FORC) and ferromagnetic resonance (FMR) in arrays of magnetic nanowires using open-source micromagnetic simulation program MuMax³ running on a graphics processing unit (GPU). Nanowires in our work are either made of a single element (eg. Ni, Co), alloys (eg. CoFe, NiFe), or multilayers (eg. Co/Ni, Cu/Ni). Nanowire arrays were electrodeposited into anodic alumina templates. FORCs were measured using vibrating sample magnetometry, and FMR was measured using the broadband ferromagnetic resonance method. We compare the simulated with the experimental results. Our interest is to study the relationship between static (FORC) and dynamic (FMR) properties as well as their relationship to crystalline properties, texture, defects, and composition of nanowires, which we both simulate and measure using X-ray diffractometry.