Single-molecule sensing using carbon nanotubes decorated with magnetic clusters

Zeila Zanolli; J. C. Charlier

doi:10.1021/nn304111a

Single-molecule sensing using carbon nanotubes decorated with magnetic clusters

Zeila Zanolli^*, J. C. Charlier

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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, 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.

Original language	English
Pages (from-to)	10786-10791
Number of pages	6
Journal	ACS Nano
Volume	6
Issue number	12
DOIs	https://doi.org/10.1021/nn304111a
Publication status	Published - 21 Dec 2012
Externally published	Yes

Keywords

carbon nanotubes
electronic structure
gas sensing
magnetic nanoclusters
nanomagnetism
spin-polarized quantum transport

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10.1021/nn304111a

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title = "Single-molecule sensing using carbon nanotubes decorated with magnetic clusters",

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, 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.",

keywords = "carbon nanotubes, electronic structure, gas sensing, magnetic nanoclusters, nanomagnetism, spin-polarized quantum transport",

author = "Zeila Zanolli and Charlier, \{J. C.\}",

year = "2012",

month = dec,

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doi = "10.1021/nn304111a",

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journal = "ACS Nano",

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T1 - Single-molecule sensing using carbon nanotubes decorated with magnetic clusters

AU - Zanolli, Zeila

AU - Charlier, J. C.

PY - 2012/12/21

Y1 - 2012/12/21

N2 - 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, 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.

AB - 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, 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.

KW - carbon nanotubes

KW - electronic structure

KW - gas sensing

KW - magnetic nanoclusters

KW - nanomagnetism

KW - spin-polarized quantum transport

UR - https://www.scopus.com/pages/publications/84871560733

U2 - 10.1021/nn304111a

DO - 10.1021/nn304111a

M3 - Article

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SN - 1936-0851

VL - 6

SP - 10786

EP - 10791

JO - ACS Nano

JF - ACS Nano

IS - 12

ER -

Single-molecule sensing using carbon nanotubes decorated with magnetic clusters

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Keywords

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