%0 Journal Article %T α−As2Te3 as a platform for the exploration of the electronic band structure of single layer β−tellurene %+ Centre de Nanosciences et de Nanotechnologies (C2N) %+ Università degli Studi dell'Aquila = University of L'Aquila (UNIVAQ) %+ University of Fribourg %+ Institut Jean Lamour (IJL) %+ Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS) %+ Institut Universitaire de France (IUF) %+ Laboratoire de Physique des Solides (LPS) %+ Synchrotron SOLEIL (SSOLEIL) %+ Institut des Nanosciences de Paris (INSP) %+ CNR-SPIN and Department of Physics “E. Pancini %A Khalil, Lama %A Forcella, Pietro Maria %A Kremer, Geoffroy %A Bisti, Federico %A Chaste, Julien %A Girard, Jean-Christophe %A Oehler, Fabrice %A Pala, Marco %A Dayen, Jean-Francois %A Logoteta, Demetrio %A Goerbig, Mark %A Bertran, François %A Le Fèvre, Patrick %A Lhuillier, Emmanuel %A Rault, Julien, E. %A Pierucci, Debora %A Profeta, Gianni %A Ouerghi, Abdelkarim %Z P.M.F. wishes to acknowledge financial support from the Erasmus Plus for Traineeship from the University of L’Aquila. G.P. acknowledges the Italian Ministry for Research and Education through PRIN-2017 project “Tuning and understanding Quantum phases in 2D materials. Quantum 2D” (IT-MIUR Grant No. 2017Z8TS5B). %< avec comité de lecture %@ 2469-9950 %J Physical Review B %I American Physical Society %V 106 %N 12 %P 125152 %8 2022-09-30 %D 2022 %R 10.1103/physrevb.106.125152 %Z Physics [physics]/Condensed Matter [cond-mat]Journal articles %X Arsenic telluride, As 2 Te 3 , is a layered van der Waals (vdW) semiconducting material usually known for its thermoelectric properties. It is composed of layers stacked together via weak vdW interactions, which can consequently be exfoliated into thin two-dimensional layers. Here, we studied the electronic properties of the α phase of As 2 Te 3 by using angle-resolved photoemission spectroscopy (ARPES) and density-functional theory (DFT). In addition to the spectroscopic signature of α−As 2 Te 3 , we were able to isolate anisotropic 2D electronic states, decoupled from the α−As 2 Te 3 electronic structure, that we propose to ascribe to single layer (SL) β−tellurene. Our findings are supported by theoretical investigations using DFT, which reproduce the main ARPES experimental features. Our work thereby proposes α−As 2 Te 3 (100) surface as an interesting platform for the experimental exploration of the electronic band structure of SL β−tellurene, which has been difficult to experimentally access otherwise. %G English %2 https://hal.science/hal-03865011/document %2 https://hal.science/hal-03865011/file/as2te3%20PhysRevB.106.125152.pdf %L hal-03865011 %U https://hal.science/hal-03865011 %~ CNRS %~ INSP %~ ALLINSP %~ UNIV-STRASBG %~ UNIV-LORRAINE %~ INSP-E6 %~ INC-CNRS %~ IJL-UL %~ UNIV-PARIS-SACLAY %~ SYNCHROTRON-SOLEIL %~ SITE-ALSACE %~ SORBONNE-UNIVERSITE %~ SORBONNE-UNIV %~ SU-SCIENCES %~ UNIVERSITE-PARIS-SACLAY %~ SU-TI %~ ANR %~ GS-CHIMIE %~ GS-PHYSIQUE %~ GS-LIFE-SCIENCES-HEALTH %~ LPSO %~ ALLIANCE-SU %~ TEST2-HALCNRS %~ C2N