title: Graphene spintronic devices with molecular nanomagnets.
abstract: 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.
authors.affiliation: Centro S3, Istituto Nanoscienze-CNR, via Campi 213/a, 41125 Modena, Italy. andrea.candini@nano.cnr.it
authors.forename: Andrea
authors.initials: A
authors.lastname: Candini
authors.forename: Svetlana
authors.initials: S
authors.lastname: Klyatskaya
authors.forename: Mario
authors.initials: M
authors.lastname: Ruben
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wernsdorfer
authors.forename: Marco
authors.initials: M
authors.lastname: Affronte
mesh_terms: D006108:Graphite / Q000737:chemistry*; D008280:Magnetics; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology; D009942:Organometallic Compounds / Q000737:chemistry*; D010316:Particle Size; D011789:Quantum Theory; D013499:Surface Properties; D013725:Terbium / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D013725:Terbium; D006108:Graphite