Journal
NANO LETTERS
Volume 11, Issue 7, Pages 2634-2639Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl2006142
Keywords
Single-molecule magnets; graphene nanodevices; single-molecule detection; molecular spintronics
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Funding
- EU [211284]
- ERC [226558]
- German Science Foundation (DFG) [1149]
- ANR-Pnano
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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 TbPc2 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 TbPc2 quantum magnets. These results depict the behavior of multiple-field-effect nanotransistors with sensitivity at the single-molecule level.
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