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Van der Waals epitaxial growth of air-stable CrSe2 nanosheets with thickness-tunable magnetic order.
Li, Bo; Wan, Zhong; Wang, Cong; Chen, Peng; Huang, Bevin; Cheng, Xing; Qian, Qi; Li, Jia; Zhang, Zhengwei; Sun, Guangzhuang; Zhao, Bei; Ma, Huifang; Wu, Ruixia; Wei, Zhongming; Liu, Yuan; Liao, Lei; Ye, Yu; Huang, Yu; Xu, Xiaodong; Duan, Xidong; Ji, Wei; Duan, Xiangfeng.
Afiliação
  • Li B; Hunan Key Laboratory of Two-Dimensional Materials, Key Laboratory for Micro/Nano-Optoelectronic Devices, Ministry of Education, State Key Laboratory for Chemo/Biosensing and Chemometrics, Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha, China.
  • Wan Z; Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
  • Wang C; Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
  • Chen P; Department of Physics and Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Renmin University of China, Beijing, China.
  • Huang B; Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
  • Cheng X; Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
  • Qian Q; Department of Physics, University of Washington, Seattle, WA, USA.
  • Li J; State Key Laboratory for Artificial Microstructure & Mesoscopic Physics, School of Physics, Peking University, Beijing, China.
  • Zhang Z; Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.
  • Sun G; Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
  • Zhao B; Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
  • Ma H; School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, China.
  • Wu R; Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
  • Wei Z; Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
  • Liu Y; Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
  • Liao L; State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China.
  • Ye Y; Hunan Key Laboratory of Two-Dimensional Materials, Key Laboratory for Micro/Nano-Optoelectronic Devices, Ministry of Education, State Key Laboratory for Chemo/Biosensing and Chemometrics, Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha, China.
  • Huang Y; Hunan Key Laboratory of Two-Dimensional Materials, Key Laboratory for Micro/Nano-Optoelectronic Devices, Ministry of Education, State Key Laboratory for Chemo/Biosensing and Chemometrics, Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha, China.
  • Xu X; State Key Laboratory for Artificial Microstructure & Mesoscopic Physics, School of Physics, Peking University, Beijing, China.
  • Duan X; Department of Materials Science and Engineering, University of California, Los Angeles, CA, USA.
  • Ji W; California NanoSystems Institute, University of California, Los Angeles, CA, USA.
  • Duan X; Department of Physics, University of Washington, Seattle, WA, USA.
Nat Mater ; 20(6): 818-825, 2021 Jun.
Article em En | MEDLINE | ID: mdl-33649563
ABSTRACT
The discovery of intrinsic ferromagnetism in ultrathin two-dimensional van der Waals crystals opens up exciting prospects for exploring magnetism in the ultimate two-dimensional limit. Here, we show that environmentally stable CrSe2 nanosheets can be readily grown on a dangling-bond-free WSe2 substrate with systematically tunable thickness down to the monolayer limit. These CrSe2/WSe2 heterostructures display high-quality van der Waals interfaces with well-resolved moiré superlattices and ferromagnetic behaviour. We find no apparent change in surface roughness or magnetic properties after months of exposure in air. Our calculations suggest that charge transfer from the WSe2 substrate and interlayer coupling within CrSe2 play a critical role in the magnetic order in few-layer CrSe2 nanosheets. The highly controllable growth of environmentally stable CrSe2 nanosheets with tunable thickness defines a robust two-dimensional magnet for fundamental studies and potential applications in magnetoelectronic and spintronic devices.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Mater Assunto da revista: CIENCIA / QUIMICA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: China
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Mater Assunto da revista: CIENCIA / QUIMICA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: China