Single-Molecule Sensing Using Carbon Nanotubes Decorated with Magnetic Clusters

Zanolli, Zeila;Charlier, Jean-Christophe
(2012) ACS Nano — Vol. 6, n° 12, p. 10786-10791 (2012)

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  • Zanolli, ZeilaPhysique Théorique des Matériaux, Université de Liège, B-4000 Sart Tilman, Belgium
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  • Charlier, Jean-Christopheorcid-logoUCLouvain
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Abstract
First-principles and nonequilibrium Green's function techniques are used to investigate magnetism and spin-polarized quantum transport in metallic carbon nanotubes (CNT) decorated with transition metal (Ni13, Pt13) magnetic nanoclusters (NC). For small cluster sizes, the strong CNTNC interaction induces spinpolarization in the CNT. The adsorption of a benzene molecule is found to drastically modify the CNTNC magnetization. Such a magnetization change should be large enough to be detected via magnetic-AFM or SQUID magnetometry, hence suggesting a novel approach for singlemolecule gas detection.
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Zanolli, Z., & Charlier, J.-C. (2012). Single-Molecule Sensing Using Carbon Nanotubes Decorated with Magnetic Clusters. ACS Nano, 6(12), 10786-10791. https://doi.org/10.1021/nn304111a (Original work published 2012)