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Updated: May 30, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
Magnetic circular dichroism photoemission electron microscopy using laser and threshold photoemission
Takeshi Nakagawa1, Kazuya Watanabe, Yoshiyasu Matsumoto
1Institute for Molecular Science, Myodaiji-cho, Okazaki, Aichi 444-8585, Japan.
Abstract:
We demonstrate that laser induced valence band photoemission can be used in the observation of magnetic domain structures with a magnetic circular dichroism photoemission electron microscope (MCD-PEEM). It has been widely considered that valence band photoemission MCD asymmetry is rather small compared to that obtained with x-rays because of its weak spin-orbit coupling. However, we show that the MCD asymmetry is high near the photoemission threshold, permitting us to perform MCD-PEEM experiments. The use of intense and pulsed lasers as excitation sources enables PEEM studies of two-photon photoemission MCD and all optical time resolved MCD.
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