Rotation of Magnetic Stripe Domains in Fe1-xGax Thin Films

Magnetostrictive thin films of FeGa (galfenol) are the subject of current investigations owing to their applicative potential, e.g. for magnetoelastic sensor devices or microwave spintronics. In this work, we study the magnetic properties of an epitaxial Fe0.8Ga0.2 film with thickness D=65 nm, using different experimental techniques (MFM, VSM, XRMS), micromagnetic simulations, and theoretical models. The moderate competition (i.e., with quality factor Q=Ku/Kd=0.34