期刊
ACS NANO
卷 6, 期 12, 页码 10786-10791出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn304111a
关键词
spin-polarized quantum transport; nanomagnetism; carbon nanotubes; magnetic nanoclusters; electronic structure; gas sensing
类别
资金
- F.R.S.-FNRS of Belgium
- Communaute Francaise de Belgique
- European Union [211956]
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 (Ni-13, Pt-13) magnetic nanoclusters (NC). For small cluster sizes, the strong CNT-NC interaction induces spin-polarization in the CNT. The adsorption of a benzene molecule is found to drastically modify the CNT-NC magnetization. Such a magnetization change should be large enough to be detected via magnetic-AFM or SQUID magnetometry, hence suggesting a novel approach for single-molecule gas detection.
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