Theory of an all-carbon molecular switch

被引:87
作者
Gutierrez, R [1 ]
Fagas, G
Cuniberti, G
Grossmann, F
Schmidt, R
Richter, K
机构
[1] Tech Univ Dresden, Inst Theoret Phys, D-01062 Dresden, Germany
[2] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
[3] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany
关键词
D O I
10.1103/PhysRevB.65.113410
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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.
引用
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页码:1 / 4
页数:4
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