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Updated: Jul 17, 2026

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
Published on: October 9, 2012
Spin-resolved photoemission of surface states of W(110)-(1 x 1)H
M Hochstrasser1, J G Tobin, Eli Rotenberg
1Chemistry and Material Science Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
Abstract:
The surface electronic states of W(110)-(1 x 1)H have been measured using spin- and angle-resolved photoemission. We directly demonstrate that the surface bands are both split and spin-polarized by the spin-orbit interaction in association with the loss of inversion symmetry near a surface. We observe 100% spin polarization of the surface states, with the spins aligned in the plane of the surface and oriented in a circular fashion relative to the Smacr; symmetry point. In contrast, no measurable polarization of nearby bulk states is observed.
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