1. Compact setup for spin-, time-, and angle-resolved photoemission spectroscopy.
- Author
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Bühlmann, K., Gort, R., Fognini, A., Däster, S., Holenstein, S., Hartmann, N., Zemp, Y., Salvatella, G., Michlmayr, T. U., Bähler, T., Kutnyakhov, D., Medjanik, K., Schönhense, G., Vaterlaus, A., and Acremann, Y.
- Subjects
PHOTOELECTRON spectroscopy ,ELECTRON diffraction ,PHOTOEMISSION ,HARMONIC drives ,IRIDIUM ,TIME-resolved spectroscopy - Abstract
We present a compact setup for spin-, time-, and angle-resolved photoemission spectroscopy. A 10 kHz titanium sapphire laser system delivers pulses of 20 fs duration, which drive a high harmonic generation-based source for ultraviolet photons at 21 eV for photoemission. The same laser also excites the sample for pump–probe experiments. Emitted electrons pass through a hemispherical energy analyzer and a spin-filtering element. The latter is based on spin-polarized low-energy electron diffraction on an Au-passivated iridium crystal. The performance of the measurement system is discussed in terms of the resolution and efficiency of the spin filter, which are higher than those for Mott-based techniques. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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