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Enhanced Magnetism and Anomalous Hall Transport through Two-Dimensional Tungsten Disulfide Interfaces.
Hung, Chang-Ming; Dang, Diem Thi-Xuan; Chanda, Amit; Detellem, Derick; Alzahrani, Noha; Kapuruge, Nalaka; Pham, Yen T H; Liu, Mingzu; Zhou, Da; Gutierrez, Humberto R; Arena, Darío A; Terrones, Mauricio; Witanachchi, Sarath; Woods, Lilia M; Srikanth, Hariharan; Phan, Manh-Huong.
Afiliación
  • Hung CM; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Dang DT; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Chanda A; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Detellem D; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Alzahrani N; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Kapuruge N; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Pham YTH; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Liu M; Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
  • Zhou D; Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
  • Gutierrez HR; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Arena DA; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Terrones M; Department of Physics, The Pennsylvania State University, University Park, PA 16802, USA.
  • Witanachchi S; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Woods LM; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Srikanth H; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
  • Phan MH; Department of Physics, University of South Florida, Tampa, FL 33620, USA.
Nanomaterials (Basel) ; 13(4)2023 Feb 18.
Article en En | MEDLINE | ID: mdl-36839139
ABSTRACT
The magnetic proximity effect (MPE) has recently been explored to manipulate interfacial properties of two-dimensional (2D) transition metal dichalcogenide (TMD)/ferromagnet heterostructures for use in spintronics and valleytronics. However, a full understanding of the MPE and its temperature and magnetic field evolution in these systems is lacking. In this study, the MPE has been probed in Pt/WS2/BPIO (biphase iron oxide, Fe3O4 and α-Fe2O3) heterostructures through a comprehensive investigation of their magnetic and transport properties using magnetometry, four-probe resistivity, and anomalous Hall effect (AHE) measurements. Density functional theory (DFT) calculations are performed to complement the experimental findings. We found that the presence of monolayer WS2 flakes reduces the magnetization of BPIO and hence the total magnetization of Pt/WS2/BPIO at T > ~120 K-the Verwey transition temperature of Fe3O4 (TV). However, an enhanced magnetization is achieved at T < TV. In the latter case, a comparative analysis of the transport properties of Pt/WS2/BPIO and Pt/BPIO from AHE measurements reveals ferromagnetic coupling at the WS2/BPIO interface. Our study forms the foundation for understanding MPE-mediated interfacial properties and paves a new pathway for designing 2D TMD/magnet heterostructures for applications in spintronics, opto-spincaloritronics, and valleytronics.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2023 Tipo del documento: Article
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2023 Tipo del documento: Article