Room-temperature ferromagnetism in epitaxial bilayer FeSb/SrTiO3(001) terminated with a Kagome lattice
arXiv:2311.05833 · doi:10.1021/acs.nanolett.3c03415
Abstract
Two-dimensional (2D) magnets exhibit unique physical properties for potential applications in spintronics. To date, most 2D ferromagnets are obtained by mechanical exfoliation of bulk materials with van der Waals interlayer interactions, and the synthesis of single or few-layer 2D ferromagnets with strong interlayer coupling remains experimentally challenging. Here, we report the epitaxial growth of 2D non-van der Waals ferromagnetic bilayer FeSb on SrTiO3(001) substrates stabilized by strong coupling to the substrate, which exhibits in-plane magnetic anisotropy and a Curie temperature above 300 K. In-situ low-temperature scanning tunneling microscopy/spectroscopy and density-functional theory calculations further reveal that a Fe Kagome layer terminates the bilayer FeSb. Our results open a new avenue for further exploring emergent quantum phenomena from the interplay of ferromagnetism and topology for application in spintronics.
References in corpus (21)
- Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit
- Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
- Gate-tunable Room-temperature Ferromagnetism in Two-dimensional FeGeTe
- Graphene Spintronics
- Giant Tunneling Magnetoresistance in Spin-Filter van der Waals Heterostructures
- Ising-Type Magnetic Ordering in Atomically Thin FePS3
- Emergent Phenomena Induced by Spin-Orbit Coupling at Surfaces and Interfaces
- Massive Dirac fermions in a ferromagnetic kagome metal
- Unique thickness-dependent properties of the van der Waals interlayer antiferromagnet films
- Discovery of a quantum limit Chern magnet TbMn6Sn6
- Topological kagome magnets and superconductors
- Magnetic Order and Symmetry in the 2D Semiconductor CrSBr
- Topological superconductivity in a van der Waals heterostructure
- Evolution of interlayer and intralayer magnetism in three atomically thin chromium trihalides
- Layer-Resolved Magnetic Proximity Effect in van der Waals Heterostructures
- Intrinsic 2D-XY ferromagnetism in a van der Waals monolayer
- Phase-controllable growth of ultrathin 2D magnetic FeTe crystals
- Observation of Topologically Protected States at Crystalline Phase Boundaries in Single-layer WSe2
- Observation of Coulomb gap in the quantum spin Hall candidate single-layer 1T'-WTe
- Reversible room-temperature ferromagnetism in Nb-doped SrTiO3 single crystals
- Magnetic anisotropy in FeSb studied by 57Fe Mössbauer spectroscopy