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Updated: Jan 26, 2026

Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films
Published on: May 11, 2019
Giant Anisotropy of Gilbert Damping in Epitaxial CoFe Films
Yi Li1,2, Fanlong Zeng3, Steven S-L Zhang2
1Department of Physics, Oakland University, Rochester, Michigan 48309, USA.
Abstract:
Tailoring Gilbert damping of metallic ferromagnetic thin films is one of the central interests in spintronics applications. Here we report a giant Gilbert damping anisotropy in epitaxial Co_{50}Fe_{50} thin films with a maximum-minimum damping ratio of 400%, determined by broadband spin-torque ferromagnetic resonance as well as inductive ferromagnetic resonance. We conclude that the origin of this damping anisotropy is the variation of the spin orbit coupling for different magnetization orientations in the cubic lattice, which is further corroborated from the magnitude of the anisotropic magnetoresistance in Co_{50}Fe_{50}.
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