Enhancing exchange bias and tailoring microwave properties of FeCo/MnIr multilayers by oblique deposition

Abstract

A systematic study of the static and dynamic magnetic properties with regards to temperature for FeCo/MnIr multilayered thin films fabricated by oblique sputtering technique was carried out. Compared with the film produced by conventional non-oblique sputtering method, those films grown by oblique deposition show a significant increment of exchange bias. The magnetic anisotropy field and the ferromagnetic resonance frequency can also be enhanced and tailored by changing oblique deposition angle. In addition, thermal stability of the dynamic characteristics of the films was presented and discussed from application-oriented perspective. © 2012 American Institute of Physics.