Magnetization dynamics and proximity effects in ultrasoft composition modulated amorphous CoAlZr alloy thin films.

ABSTRACT: The magnetic properties of amorphous thin films are shaped by inherent composition variations and magnetic proximity effects. Their magnetic properties can be tuned precisely with composition over a continuous range and their high resistance reduces shunting in spintronic systems. We examine the static and dynamic magnetic properties of amorphous magnetic thin films of Co_x(Al_0.7Zr_0.3)_1-x in the range 0.60≤x<0.87 , with and without a purposely modulated composition. The Gilbert damping is very low but increases dramatically with decreasing Co content. Damping is also studied in a CoAlZr multilayer with alternating intrinsically paramagnetic and ferromagnetic layers, and a film with a continuously modulated composition, both showing low damping. Th

SUBMITTER: Tryggvason A 

PROVIDER: S-EPMC11876606 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature