SKM 2023 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 40: 2D Materials V: Growth, Structure and Substrate Interaction (joint session O/CPP)
CPP 40.5: Talk
Wednesday, March 29, 2023, 16:00–16:15, GER 37
Monolayers of CoCl2 and CoBr2 on Au(111) - Chemical, magnetic and structural investigation — •Samuel Kerschbaumer1, Sebastien Hadjadj2, Andrea Aguirre Baños3, Danilo Longo3, Wolfgang Kuch2, José Ignacio Pascual3, Celia Rogero1, and Maxim Ilyn1 — 1Centro de Fisica de Materiales (CSIC/UPV-EHU), 20018 Donostia-San Sebastian, Spain — 2Institut für Experimentalphysik, Freie Universität Berlin, 14195 Berlin, Germany — 3CIC nanoGUNE-BRTA, 20018 Donostia-San Sebastian, Spain
Magnetic 2D materials have gained increasing interest, due to their potential applications. But while many theoretical calculations predict magnetic order in various 2D materials [1], only few have been experimentally measured [2]. A very promising classes of materials are transition metal halides (TMHs), as many of them crystallise in Van der Waals layered structures, making them easily cleavable, while their partially filled d orbitals generate the perfect foundation for magnetic order, further increasing their attractiveness for future nanotechnologies. In this talk chemical, magnetic and structural properties of single-layer CoCl2 and CoBr2 on Au(111) by scanning tunelling microscopy (STM), X-ray photoelectron spectroscopy (XPS), low energy electron diffraction (LEED) and X-ray absorption spectroscopy (XAS/XMCD) will be presented.
[1] Michael A. McGuire, Crystals, 7(5), 121, (2017)
[2] Djuro Bikaljevic et al., ACS Nano, 15, 14985 (2021)