Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session F07: Correlated Topological Metals and Other Quantum Fluids
8:00 AM–10:36 AM,
Tuesday, March 5, 2024
Room: L100H
Sponsoring
Unit:
DCMP
Chair: Frank Kruger, University College London; Dmitry Chichinadze, National High Magnetic Field Laboratory
Abstract: F07.00005 : Surface states and effects of local surface chemistry in f-electron Weyl Semimetal CeCoGe*
8:48 AM–9:00 AM
Presenter:
Robert Prater
(University of California, Davis)
Authors:
Robert Prater
(University of California, Davis)
Matthew C Staab
(University of California, Davis)
Sudheer Anand Sreedhar
(University of California, Davis)
Zihao Shen
(University of California, Davis)
Vsevolod Ivanov
(Lawrence Berkely National Labratory)
Sergey Y Savrasov
(University of California, Davis)
Valentin Taufour
(UC Davis)
Inna M Vishik
(University of California, Davis)
Collaboration:
Robert Prater, Matthew C Staab, Sudheer Anand Sreedhar, Vsevolod Ivanov (LBNL), Zihao Shen, Valentin Taufour, Sergey Y Savrasov, Jonathan Delinger (LBNL), Inna M Vishik
Topological quantum materials have defining surface states whose presentation in ARPES (angle resolved photoemission spectroscopy) can depend on the sometimes irregular chemistry of the cleaved surface. Local surface structure and chemistry can produce additional effects in the band structure of novel materials probed via photoemission. CeCoGe3 is a strongly correlated f-electron Weyl semimetal (WSM) with enhanced effective mass and low-temperature magnetism. I will present both XPS (x-ray photoemission spectroscopy) and ARPES measurements of CeCoGe3, showing correlations between surface environment and local electronic structure.
Funding acknowledgement: BSF Grant 2020067
*BSF Grant 2020067
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