DataVXChemistry of MaterialsPaper
journal article·2023-12-12

Epitaxial Monolayers of the Magnetic 2D Semiconductor FeBr2 Grown on Au(111)

Sebastien E. Hadjadj, Carmen González-Orellana, James Lawrence, Djuro Bikaljević, Marina Peña-Díaz, Pierluigi Gargiani, Lucia Aballe, Jan Naumann, Miguel Ángel Niño, Michael Foerster, Sandra Ruiz-Gómez, Sangeeta Thakur, Ivar Kumberg, James M. Taylor, Jack Hayes, Jorge Torres, Chen Luo, Florin Radu, Dimas G. de Oteyza, Wolfgang Kuch, José Ignacio Pascual, Celia Rogero, Maxim Ilyn

Chemistry of Materials· Volume 35· Issue 23
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Source abstract

Abstract

Magnetic two-dimensional (2D) semiconductors have attracted a lot of attention because modern preparation techniques are capable of providing single-crystal films of these materials with precise control of thickness down to the single-layer limit. It opens up a way to study a rich variety of electronic and magnetic phenomena with promising routes toward potential applications. We have investigated the initial stages of epitaxial growth of the magnetic van der Waals semiconductor FeBr 2 on a single-crystal Au(111) substrate by means of low-temperature scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), X-ray photoemission spectroscopy (XPS), low-energy electron emission microscopy (LEEM), and X-ray photoemission electron microscopy (XPEEM). Magnetic properties of the one- and two-layer thick films were measured via X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD). Our findings show a striking difference in the magnetic behavior of the single layer of FeBr 2 and its bulk counterpart, which can be attributed to the modifications in the crystal structure due to the interaction with the substrate.
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Research context

Electronic materials

OpenAlex topics: Graphene research and applications · 2D Materials and Applications · Topological Materials and Phenomena

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, 14195 Berlin, Germany

Centro de Física de Materiales (CSIC/UPV-EHU), 20018 Donostia-San Sebastián, Spain

Donostia International Physics Center, 20018 Donostia-San Sebastián, Spain

CIC nanoGUNE-BRTA, 20018 Donostia-San Sebastián, Spain

Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria

ALBA Synchrotron Light Source, 08290 Barcelona, Spain

Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany

Max Planck Institute for Chemical Physics of Solids, 01180 Dresden, Germany

Helmholtz-Zentrum Berlin, Albert-Einstein-Str. 15, 12489 Berlin, Germany

Fakultät für Physik, Technische Universität München, James-Franck-Straße 1, 85748 Garching bei München, Germany

Nanomaterials and Nanotechnology Research Center (CINN), CSIC-UNIOVI-PA, 33940 Oviedo, Spain

Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain

Funding

Bundesministerium f?r Bildung und Forschung · Ministerio de Ciencia e Innovaci?n · Ikerbasque, Basque Foundation for Science · Deutsche Forschungsgemeinschaft · Eusko Jaurlaritza · Hezkuntza, Hizkuntza Politika Eta Kultura Saila, Eusko Jaurlaritza · Horizon 2020 Framework Programme · Agencia Estatal de Investigaci?n,Ministerio de Ciencia, Innovaci?n y Universidades

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