SurfaceScience21 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 49: Poster Session IV: Electronic structure of surfaces: Spectroscopy, surface states II
O 49.5: Poster
Dienstag, 2. März 2021, 13:30–15:30, P
Electronic structure and charge density wave properties of NdTe3 — •Henriette E. Lund1, Alla Chikina1, Marco Bianchi1, Davide Curcio1, Kirstine J. Dalgaard2, Shiming Lei3, Martin Bremholm2, Leslie M. Schoop3, and Philip Hofmann1 — 1Department of Physics and Astronomy, Interdisciplinary Nanoscience Center (iNano), Aarhus University, 8000 Aarhus C, Denmark — 2Department of Chemistry and Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark — 3Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
Rare-earth tritellurides (RTe3) are a group of materials exhibiting high charge carrier mobility and, depending on the rare-earth element R, the materials host either one or two incommensurate charge density waves (CDWs). The electronic properties of RTe3 have previously been investigated by quantum oscillations and angle-resolved photoemission spectroscopy (ARPES), but reconciling the Fermi surface elements observed by both techniques remains an unresolved issue which is complicated by the presence of the CDW and possible additional electronic phase transitions caused by strong magnetic fields.
The goal of the present study is to investigate whether the quantum oscillations reported for NdTe3 can be reconciled with ARPES results. To this end, we refine a tight-binding model to include all relevant interactions and to describe the Fermi surface elements identified by both approaches.