Journal Article

PUBDB-2025-02294

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Recoil effects in high energy photoemission of solids − Revisited

Roth, F.Extern*XFEL.EU* ; Potorochin, D.XFEL.EU*DESY* ; Gloskovskii, A.DESY* ; Schlueter, C.DESY* ; Wenthaus, L.DESY* ; Drube, W.Extern* ; Molodtsov, S.XFEL.EU* ; Eberhardt, W. (Corresponding author)Extern*XFEL.EU*

2025
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.elspec.2025.147544  doi:10.3204/PUBDB-2025-02294

Abstract: This study systematically investigates core level recoil in photoemission from crystalline silicon (Si) and silicon carbide (4H-SiC), within the X-ray range of 2.45–9.5 keV. By examining the Si 2p, 2s, and C 1s core levels, we observe that SiC exhibits energy shifts exceeding single-atom recoil predictions, along with a lineshape change at higher photon energies attributed to being phonon-induced. In contrast, pure Si shows more modest shifts and line broadening, consistent with expected recoil effects. These observations imply that especially compound materials, such as SiC, exhibit an enhanced interplay of recoil and phonon dynamics, underscoring the necessity for refined photoemission models that accommodate these effects.

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Contributing Institute(s):

1. PETRA-S (FS-PETRA-S)
2. DOOR-User (DOOR ; HAS-User)
3. FLASH Wissenschaftlicher Nutzerbetrieb (FS-FLASH-O)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. 05K22OF2 - Untersuchungen des Ladungstransfers an Grenzflächen mittels pikosekunden zeitaufgelöster Photoelektronenspektroskopie bei Umgebungsdruck (BMBF-05K22OF2) (BMBF-05K22OF2)

Experiment(s):

1. PETRA Beamline P22 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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