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Title: Room-Temperature Ferromagnetism in Epitaxial Bilayer FeSb/SrTiO 3 (001) Terminated with a Kagome Lattice

Journal Article · · Nano Letters
ORCiD logo [1];  [2]; ORCiD logo [3];  [4];  [3];  [5];  [6]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [7]; ORCiD logo [3]; ORCiD logo [8];  [4]
  1. Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, United States, State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, 116024, China
  2. Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
  3. Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, Texas, 77204, United States
  4. Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, United States
  5. Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, United States, Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  6. Department of Materials Science and Engineering, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
  7. State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian, 116024, China, Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
  8. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831 United States

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 390 K. In situ lowtemperature scanning tunneling microscopy/spectroscopy and density-functional theory calculations further reveal that an 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.

Research Organization:
West Virginia Univ., Morgantown, WV (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); US Air Force Office of Scientific Research (AFOSR); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
SC0017632; FG02-08ER46547; FA9550-15-1-0236; FA9550-20-1-0068; 12304210; 11874097; 12274050; 91961204
OSTI ID:
2204431
Alternate ID(s):
OSTI ID: 2280763
Journal Information:
Nano Letters, Journal Name: Nano Letters Vol. 24 Journal Issue: 1; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (47)

Generalized Gradient Approximation Made Simple journal October 1996
Topological superconductivity in a van der Waals heterostructure journal December 2020
Exfoliation of a non-van der Waals material from iron ore hematite journal May 2018
Molecular-beam epitaxy and robust superconductivity of stoichiometric FeSe crystalline films on bilayer graphene journal July 2011
Graphene spintronics journal October 2014
Phase-controllable growth of ultrathin 2D magnetic FeTe crystals journal July 2020
Recent progress on 2D magnets: Fundamental mechanism, structural design and modification journal September 2021
Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional Isotropic Heisenberg Models journal November 1966
Magnetic anisotropy in FeSb studied by 57Fe Mössbauer spectroscopy journal February 2016
Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals journal April 2017
Recent advances in two-dimensional van der Waals magnets journal January 2022
Sub-millimeter-Scale Growth of One-Unit-Cell-Thick Ferrimagnetic Cr 2 S 3 Nanosheets journal February 2019
Gate-tunable room-temperature ferromagnetism in two-dimensional Fe3GeTe2 journal October 2018
Magnetic Properties and Photocatalytic Applications of 2D Sheets of Nonlayered Manganese Telluride by Liquid Exfoliation journal October 2018
Quantum-limit Chern topological magnetism in TbMn6Sn6 journal July 2020
Critical behavior of the single-crystalline van der Waals bonded ferromagnet Cr 2 Ge 2 Te 6 journal December 2018
Two-dimensional ferromagnetism in CrTe flakes down to atomically thin layers journal January 2020
Ultrathin Magnetic 2D Single‐Crystal CrSe journal March 2019
Nucleation and growth of aluminum on an inert substrate of graphite journal April 2008
The epitaxy of 2D materials growth journal November 2020
Fe-Sb (Iron-Antimony) journal April 1999
A Non-van der Waals Two-Dimensional Material from Natural Titanium Mineral Ore Ilmenite journal August 2018
Massive Dirac fermions in a ferromagnetic kagome metal journal March 2018
Tunable Room-Temperature Ferromagnetism in Two-Dimensional Cr 2 Te 3 journal April 2020
Realization of flat band with possible nontrivial topology in electronic Kagome lattice journal November 2018
Two-dimensional non-van der Waals magnetic layers: functional materials for potential device applications journal July 2021
Emergent flat band electronic structure in a VSe2/Bi2Se3 heterostructure journal January 2021
Fe-Sb-Sn (iron-antimony-tin) journal November 2001
Weak Van der Waals Stacking, Wide-Range Band Gap, and Raman Study on Ultrathin Layers of Metal Phosphorus Trichalcogenides journal December 2015
Ising-Type Magnetic Ordering in Atomically Thin FePS 3 journal November 2016
Chromiteen: A New 2D Oxide Magnetic Material from Natural Ore journal July 2018
Observation of topologically protected states at crystalline phase boundaries in single-layer WSe2 journal August 2018
Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit journal June 2017
Layer-resolved magnetic proximity effect in van der Waals heterostructures journal January 2020
Evolution of interlayer and intralayer magnetism in three atomically thin chromium trihalides journal May 2019
Emergent phenomena induced by spin–orbit coupling at surfaces and interfaces journal November 2016
Reversible room-temperature ferromagnetism in Nb-doped SrTiO 3 single crystals journal June 2013
Topological kagome magnets and superconductors journal December 2022
Giant tunneling magnetoresistance in spin-filter van der Waals heterostructures journal May 2018
Fe on Sb(111): Potential Two-Dimensional Ferromagnetic Superstructures journal January 2017
Intrinsic 2D-XY ferromagnetism in a van der Waals monolayer journal October 2021
Topology and correlations on the kagome lattice journal January 2020
Magnetic Order and Symmetry in the 2D Semiconductor CrSBr journal April 2021
Unique Thickness-Dependent Properties of the van der Waals Interlayer Antiferromagnet MnBi 2 Te 4 Films journal March 2019
Observation of Coulomb gap in the quantum spin Hall candidate single-layer 1T’-WTe2 journal October 2018
A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu journal April 2010
Mechanisms of the epitaxial growth of two-dimensional polycrystals journal May 2022