Atomic scale conductance induced by single impurity charging

N. A. Pradhan; N. Liu; C. Silien; W. Ho

doi:10.1103/PhysRevLett.94.076801

Atomic scale conductance induced by single impurity charging

N. A. Pradhan, N. Liu, C. Silien, W. Ho

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

Abstract

A scanning tunneling microscope was used to probe electron transport through an alkali doped C₆₀ monolayer crystal on Al₂O ₃ grown by the oxidation of NiAl(110). Each individual alkali atom forms a localized complex with the neighboring C₆₀ molecules. Charging of the complex induces a substantial rise in the current that persists outside the physical dimensions of the complex. This induction of the current rise is characterized by spatially resolved spectroscopy and mapping of the differential conductance (dI/dV) in the vicinity of the complex.

Original language	English
Article number	076801
Journal	Physical Review Letters
Volume	94
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.94.076801
Publication status	Published - 25 Feb 2005
Externally published	Yes

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title = "Atomic scale conductance induced by single impurity charging",

abstract = "A scanning tunneling microscope was used to probe electron transport through an alkali doped C60 monolayer crystal on Al2O 3 grown by the oxidation of NiAl(110). Each individual alkali atom forms a localized complex with the neighboring C60 molecules. Charging of the complex induces a substantial rise in the current that persists outside the physical dimensions of the complex. This induction of the current rise is characterized by spatially resolved spectroscopy and mapping of the differential conductance (dI/dV) in the vicinity of the complex.",

author = "Pradhan, {N. A.} and N. Liu and C. Silien and W. Ho",

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N2 - A scanning tunneling microscope was used to probe electron transport through an alkali doped C60 monolayer crystal on Al2O 3 grown by the oxidation of NiAl(110). Each individual alkali atom forms a localized complex with the neighboring C60 molecules. Charging of the complex induces a substantial rise in the current that persists outside the physical dimensions of the complex. This induction of the current rise is characterized by spatially resolved spectroscopy and mapping of the differential conductance (dI/dV) in the vicinity of the complex.

AB - A scanning tunneling microscope was used to probe electron transport through an alkali doped C60 monolayer crystal on Al2O 3 grown by the oxidation of NiAl(110). Each individual alkali atom forms a localized complex with the neighboring C60 molecules. Charging of the complex induces a substantial rise in the current that persists outside the physical dimensions of the complex. This induction of the current rise is characterized by spatially resolved spectroscopy and mapping of the differential conductance (dI/dV) in the vicinity of the complex.

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Atomic scale conductance induced by single impurity charging

Abstract

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