Epitaxial monolayers of magnetic 2D semiconductor FeBr${}_2$ grown on Au(111)

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 rich variety of electronic and magnetic phenomena with promising routes towards potential applications. We have investigated the initial stages of epitaxial growth of the magnetic van der Waals semiconductor FeBr\textsubscript{2} on a single-crystal Au(111) substrate by means of low-temperature scanning tunneling microscopy, low-energy electron diffraction, x-ray photoemission spectroscopy, low-energy electron emission microscopy and x-ray photoemission electron microscopy. Magnetic properties of the one- and two-layer thick films were measured via x-ray absorption spectroscopy/x-ray magnetic circular dichroism. Our findings show a striking difference in the magnetic behaviour of the single layer of FeBr\textsubscript{2} and its bulk counterpart, which can be attributed to the modifications in the crystal structure due to the interaction with the substrate.

arXiv comment20 pages, 17 figures,

References in corpus (11)

• Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
• Magnetic 2D materials and heterostructures
• Electrical Control of 2D Magnetism in Bilayer CrI3
• Multiply periodic states and isolated skyrmions in an anisotropic frustrated magnet
• Direct observation of van der Waals stacking dependent interlayer magnetism
• Crystal and Magnetic Structures in Layered, Transition Metal Dihalides and Trihalides
• Topological superconductivity in a van der Waals heterostructure
• Electronic structure and magnetism of transition metal dihalides: bulk to monolayer
• Two dimensional magnets: Forgotten history and recent progress towards spintronic applications
• Electronic and Magnetic Properties of Febr2
• Large Orbital Magnetic Moment and Coulomb Correlation effects in FeBr2

Cited by in corpus (2)

• Intrinsically patterned two-dimensional transition metal halides
• Scalable Etch-Free Transfer of Low-Dimensional Materials from Metal Films to Diverse Substrates