Thickness dependence of ferrimagnetic compensation in amorphous rare-earth transition-metal thin films.

ABSTRACT: Magnetic compensation in ferrimagnets plays an important role in spintronic and magnetic recording devices. Experimental results have demonstrated a thickness dependence of the compensation temperature ( Tcomp ) in amorphous TbFeCo thin films. It was speculated that this thickness dependence originated from a variation in the short-range order. In this work, we have investigated the depth-resolved compositional and magnetization profiles using polarized neutron reflectometry. We find that although the composition is uniform across the film thickness, near the substrate interface, the magnetization exhibits a different temperature dependence from that of the rest of the sample. Monte Carlo simulations show that it is this difference in interfacial magnetization that causes the aforementione

SUBMITTER: Ma CT 

PROVIDER: S-EPMC11187973 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature