Room-Temperature Ferromagnetism in Epitaxial Bilayer FeSb/SrTiO 3 (001) Terminated with a Kagome Lattice
- 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
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
- Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, Texas, 77204, United States
- Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, United States
- 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
- Department of Materials Science and Engineering, University of Wisconsin−Madison, Madison, Wisconsin 53706, United States
- 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
- 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
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