Graphene spintronic devices with molecular nanomagnets

Nano Lett. 2011 Jul 13;11(7):2634-9. doi: 10.1021/nl2006142. Epub 2011 Jun 7.


The possibility to graft nano-objects directly on its surface makes graphene particularly appealing for device and sensing applications. Here we report the design and the realization of a novel device made by a graphene nanoconstriction decorated with TbPc(2) magnetic molecules (Pc = phthalocyananine), to electrically detect the magnetization reversal of the molecules in proximity with graphene. A magnetoconductivity signal as high as 20% is found for the spin reversal, revealing the uniaxial magnetic anisotropy of the TbPc(2) quantum magnets. These results depict the behavior of multiple-field-effect nanotransistors with sensitivity at the single-molecule level.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Graphite / chemistry*
  • Magnetics*
  • Models, Molecular
  • Nanostructures / chemistry*
  • Nanotechnology
  • Organometallic Compounds / chemistry*
  • Particle Size
  • Quantum Theory
  • Surface Properties
  • Terbium / chemistry*


  • Organometallic Compounds
  • Terbium
  • Graphite