MBE Deposition of Epitaxial Fe1-xVx Films for Low-Loss Ghz Devices; Atomic-Scale Engineering of Magnetic Dynamics

摘要

We report on the deposition of epitaxial iron and iron alloy thin films with the lowest GHz linewidths ever attained in metallic ferromagnets. Maximum half-power Q is shown of 100 at 10 Ghz and 140 at 40 Ghz, significantly higher than known previously for metals.