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Updated: May 18, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
Magnon lifetimes on the Fe(110) surface: the role of spin-orbit coupling
Kh Zakeri1, Y Zhang, T-H Chuang
1Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany. zakeri@mpi-halle.de
Abstract:
We provide direct experimental evidence which demonstrates that, in the presence of a large spin-orbit coupling, the lifetime, amplitude, group, and phase velocity of the magnons propagating along two opposite (but crystallographically equivalent) directions perpendicular to the magnetization are different. A real time and space representation reveals that magnons with the same energy (eigenfrequency) propagate differently along two opposite directions. Our findings can inspire ideas for designing new spintronic devices.
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