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Journal Article

Theory of an all-carbon molecular switch

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Cuniberti,  G.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Richter,  K.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Gutierrez, R., Fagas, G., Cuniberti, G., Grossmann, F., Schmidt, R., & Richter, K. (2002). Theory of an all-carbon molecular switch. Physical Review B, 65(11): 113410. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRBMDO000065000011113410000001&idtype=cvips&gifs=yes.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-37D8-B
Abstract
We study electron transport across a carbon molecular junction consisting of a C-60 molecule sandwiched between two semi- infinite metallic carbon nanotubes. It is shown that the Landauer conductance of this carbon hybrid system can be tuned within orders of magnitude not only by varying the tube-C-60 distance, but more importantly at fixed distances by (i) changing the orientation of the Buckminsterfullerene or (ii) rotating one of the tubes around its cylinder axis. Furthermore, it is explicitly shown that structural relaxation determines qualitatively the transmission spectrum of such devices.