Modification of the conductance of single fullerene molecules by endohedral doping

Anna Stróecka; Kaliappan Muthukumar; Aneta Dybek; T. John Dennis; J. Andreas Larsson; Josef Mysliveček; Bert Voigtländer

doi:10.1063/1.3236529

Modification of the conductance of single fullerene molecules by endohedral doping

Anna Stróecka^*, Kaliappan Muthukumar, Aneta Dybek, T. John Dennis, J. Andreas Larsson, Josef Mysliveček, Bert Voigtländer

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

We use scanning tunneling microscopy to establish controlled contacts to single molecules of endohedrally doped Ce₂@C₈₀ fullerenes with C₆₀ as a reference. The stability of the experimental setup allows for the determination of the conductance of Ce₂@C₈₀ relative to the conductance of C₆₀. The endohedral doping reduces the conductance of Ce₂@C₈₀ by a factor of about five with respect to C₆₀. Ab initio calculations show that the reason for this reduced conductance is the absence of electron orbitals delocalized over the cage of Ce₂@C₈₀ in the energy window of the conductance measurement.

Original language	English
Article number	133118
Journal	Applied Physics Letters
Volume	95
Issue number	13
DOIs	https://doi.org/10.1063/1.3236529
Publication status	Published - 2009
Externally published	Yes

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title = "Modification of the conductance of single fullerene molecules by endohedral doping",

abstract = "We use scanning tunneling microscopy to establish controlled contacts to single molecules of endohedrally doped Ce2@C80 fullerenes with C60 as a reference. The stability of the experimental setup allows for the determination of the conductance of Ce2@C80 relative to the conductance of C60. The endohedral doping reduces the conductance of Ce2@C80 by a factor of about five with respect to C60. Ab initio calculations show that the reason for this reduced conductance is the absence of electron orbitals delocalized over the cage of Ce2@C80 in the energy window of the conductance measurement.",

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note = "Funding Information: This work was supported by the FP6 project NANOCAGE (Grant No. MEST-CT-2004-50-6854), the Science Foundation of Ireland, and Czech Project MSM Grant No. 0021620834. We acknowledge the Irish Centre for High-End Computing (ICHEC) for generous allotment of computer resources.",

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AU - Stróecka, Anna

AU - Muthukumar, Kaliappan

AU - Dybek, Aneta

AU - Dennis, T. John

AU - Larsson, J. Andreas

AU - Mysliveček, Josef

AU - Voigtländer, Bert

N1 - Funding Information: This work was supported by the FP6 project NANOCAGE (Grant No. MEST-CT-2004-50-6854), the Science Foundation of Ireland, and Czech Project MSM Grant No. 0021620834. We acknowledge the Irish Centre for High-End Computing (ICHEC) for generous allotment of computer resources.

PY - 2009

Y1 - 2009

N2 - We use scanning tunneling microscopy to establish controlled contacts to single molecules of endohedrally doped Ce2@C80 fullerenes with C60 as a reference. The stability of the experimental setup allows for the determination of the conductance of Ce2@C80 relative to the conductance of C60. The endohedral doping reduces the conductance of Ce2@C80 by a factor of about five with respect to C60. Ab initio calculations show that the reason for this reduced conductance is the absence of electron orbitals delocalized over the cage of Ce2@C80 in the energy window of the conductance measurement.

AB - We use scanning tunneling microscopy to establish controlled contacts to single molecules of endohedrally doped Ce2@C80 fullerenes with C60 as a reference. The stability of the experimental setup allows for the determination of the conductance of Ce2@C80 relative to the conductance of C60. The endohedral doping reduces the conductance of Ce2@C80 by a factor of about five with respect to C60. Ab initio calculations show that the reason for this reduced conductance is the absence of electron orbitals delocalized over the cage of Ce2@C80 in the energy window of the conductance measurement.

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Modification of the conductance of single fullerene molecules by endohedral doping

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