Dresden 2026 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 2: Electronic structure of surfaces: Spectroscopy, surface states I

O 2.7: Vortrag

Montag, 9. März 2026, 12:15–12:30, HSZ/0201

The TXPES Beamline at SESAME * A New Facility for Advanced Soft X-ray Photoelectron Spectroscopy — •ZEYNEP REYHAN OZTURK — SESAME

The Turkish X-ray Photoelectron Spectroscopy (TXPES) beamline, newly installed at the SESAME synchrotron, is dedicated to advanced soft X-ray photoelectron spectroscopy (XPS/UPS) for surface and interface analysis. Designed for high-resolution measurements across a broad photon energy range, TXPES enables detailed investigation of electronic structure, chemical composition, and oxidation states in complex materials.

The end station features interconnected UHV chambers for sample preparation, analysis, and in situ or near-ambient pressure experiments. Equipped with a hemispherical analyzer, ion gun, LEED, and LEIS, it allows comprehensive surface characterization with variable depth sensitivity.

TXPES provides a powerful platform for studying surface oxidation, adsorption, catalysis, and band alignment under controlled environments, including realistic gas conditions via its high-pressure cell. Currently in commissioning, the beamline will support diverse research on functional oxides, thin films, catalysts, and magnetic materials, highlighting the collaborative effort between Turkish institutions and SESAME toward full user operation.

Keywords: X RAY ABSORPTION; XPS; SURFACE SCIENCE; ELECTRONIC STRUCTURE