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Berlin 2024 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 37: Poster: Electronic Structure of Surfaces and Spectroscopy of Surface States

O 37.9: Poster

Dienstag, 19. März 2024, 18:00–20:00, Poster D

Electronic structure study of intercalated transition metal dichalcogenide — •Jyoti Kaswan1, Laurent Nicolaï1, Michal Procházka1, Sarath Sasi1, Sunil W Dsouza1, Veronica Vavruňková1, Rostislav Medlín1, Zdeněk Sofer2, Stefanie Gärtner3, and Jan Minár11University of West Bohemia, Plzeň, Czech Rep. — 2University of chemistry and technology Prague, Czech Rep. — 3University of Regensburg, Germany

Intercalated transition metal dichalcogenide (TMDs) has recently attracted attention of condensed matter community owing to the exhibition of the exotic phenomena depending upon the intercalate transition metal [1]. We explore the electronic structure of V-intercalated TMDs V1/3NbS2 using spin and angle resolved photoemission spectroscopy (SARPES) in combination with one step model of photoemission as implemented in the SPR-KKR package [2], our calculations can combine temperature- and phonon energy-dependent effects via inclusion of both bulk and surface phonons. Raman spectroscopy has been employed to determine the spin-phonon interaction along with the in-plane metal-metal distance and out of plane interlayer distance. For determining bulk as well as surface lattice structure of the V1/3NbS2 monocrystals, we have utilized multiple characterizations techniques Low electron energy diffraction (LEED), Transmission electron microscopy (TEM) and single crystal X-ray diffraction. [1] B. Edwards et al, Nature Materials 22, 459 (2023) [2] H. Ebert, D. Ködderitzsch and J. Minár, Rep. on Prog. in Phys. 74, 096501 (2011)

Keywords: Intercalated transition metal dichalcogenide; electronic structure; surface structure; SPR-KKR

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