• 文献标题:   Electronegative ligands enhance charge transfer to Mn-12 single-molecule magnets deposited on graphene
  • 文献类型:   Article
  • 作  者:   ZHU XC, HALE A, CHRISTOU G, HEBARD AF
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF APPLIED PHYSICS
  • ISSN:   0021-8979 EI 1089-7550
  • 通讯作者地址:   Univ Florida
  • 被引频次:   0
  • DOI:   10.1063/1.5128329
  • 出版年:   2020

▎ 摘  要

Combining single-molecule magnets (SMMs) and emergent two-dimensional substrates such as graphene may lead to device configurations that are promising for spintronics and quantum computing. However, to fully exploit the unique features of SMMs anchored to two-dimensional substrates, the choice of ligand attachments, which could affect the magnetic and electronic properties, is critical. In this work, we focus on hybrid junctions comprising CVD-grown graphene and [Mn12O12(O2CR)(16)(H2O)(4)](R = CH3, CHCl2) SMMs with different ligands. We find that [Mn12O12(O2CCH3)(16)(H2O)(4)] SMMs barely change the graphene's conductivity, while [Mn12O12(O2CCHCl2)(16)(H2O)(4)] SMMs with more electronegative ligands, by means of charge transfer, remarkably modify the electronic transport in graphene as revealed by gate-voltage dependent magnetotransport measurements. Published under license by AIP Publishing.