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Two-dimensional (2D) magnets such as chromium trihalides CrX3 (X = I, Br, Cl) represent a frontier for spintronics applications and, in particular, CrCl3 has attracted research interest due its relative stability under ambient conditions without rapid degradation, as opposed to CrI3. Herein, mechanically exfoliated CrCl3 flakes are characterized at the atomic scale and the electronic structures of pristine, oxidized, and defective monolayer CrCl3 phases are investigated employing density functional theory (DFT) calculations, scanning tunneling spectroscopy (STS), core level X-ray photoemission spectroscopy (XPS), and valence band XPS and ultraviolet photoemission spectroscopy (UPS). As revealed by atomically resolved transmission electron microscopy (TEM) and energy dispersive X-ray (EDX) analysis, the CrCl3 flakes show spontaneous surface oxidation upon air exposure with an extrinsic long-range ordered …
Royal Society of Chemistry
Publication date: 
1 Jan 2021

Dario Mastrippolito, Luca Ottaviano, Jing Wang, Jinjin Yang, Faming Gao, Mushtaq Ali, Gianluca D'Olimpio, Antonio Politano, Stefano Palleschi, Shafaq Kazim, Roberto Gunnella, Andrea Di Cicco, Anna Sgarlata, Judyta Strychalska-Nowak, Tomasz Klimczuk, Robert Joseph Cava, Luca Lozzi, Gianni Profeta

Biblio References: 
Volume: 3 Issue: 16 Pages: 4756-4766
Nanoscale Advances