Soft X-ray ARPES for three-dimensional crystals in the micrometre region

An endstation dedicated to angle-resolved photoemission spectroscopy (ARPES) using a soft X-ray microbeam has been developed at the beamline BL25SU of SPring-8. To obtain a high photoemission intensity, this endstation is optimized for measurements under the condition of grazing beam incidence to a...

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Veröffentlicht in:Journal of synchrotron radiation. - 1994. - 28(2021), Pt 5 vom: 01. Sept., Seite 1631-1638
1. Verfasser: Muro, Takayuki (VerfasserIn)
Weitere Verfasser: Senba, Yasunori, Ohashi, Haruhiko, Ohkochi, Takuo, Matsushita, Tomohiro, Kinoshita, Toyohiko, Shin, Shik
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Journal of synchrotron radiation
Schlagworte:Journal Article BL25SU SPring-8 microbeams soft X-ray ARPES
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520 |a An endstation dedicated to angle-resolved photoemission spectroscopy (ARPES) using a soft X-ray microbeam has been developed at the beamline BL25SU of SPring-8. To obtain a high photoemission intensity, this endstation is optimized for measurements under the condition of grazing beam incidence to a sample surface, where the glancing angle is 5° or smaller. A Wolter mirror is used for focusing the soft X-rays. Even at the glancing angle of 5°, the smallest beam spot still having a sufficient photon flux for ARPES is almost round on the sample surface and the FWHM diameter is ∼5 µm. There is no need to change the sample orientation for performing kx - ky mapping by virtue of the electron lens with a deflector of the photoelectron analyzer, which makes it possible to keep the irradiation area unchanged. A partially cleaved surface area as small as ∼20 µm was made on an Si(111) wafer and ARPES measurements were performed. The results are presented 
650 4 |a Journal Article 
650 4 |a BL25SU 
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650 4 |a microbeams 
650 4 |a soft X-ray ARPES 
700 1 |a Senba, Yasunori  |e verfasserin  |4 aut 
700 1 |a Ohashi, Haruhiko  |e verfasserin  |4 aut 
700 1 |a Ohkochi, Takuo  |e verfasserin  |4 aut 
700 1 |a Matsushita, Tomohiro  |e verfasserin  |4 aut 
700 1 |a Kinoshita, Toyohiko  |e verfasserin  |4 aut 
700 1 |a Shin, Shik  |e verfasserin  |4 aut 
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