Carbon nanotubes as nanoelectromechanical systems
By S. Sapmaz, Y. Blanter, Leonid Gurevich, Herre S. J. van der Zant. 2002
194 citations recorded by the source corpus.
We theoretically study the interplay between electrical and mechanical properties of suspended, doubly clamped carbon nanotubes in which charging effects dominate. In this geometry, the capacitance between the nanotube and the gate(s) depends on the distance between them. This dependence modifies the usual Coulomb models and we show that it needs to be incorporated to capture the physics of the problem correctly. We find that the tube position changes in discrete steps every time an electron tunnels onto it. Edges of Coulomb diamonds acquire a (small) curvature. We also show that bistability in the tube position occurs and that tunneling of an electron onto the tube drastically modifies the quantized eigenmodes of the tube. Experimental verification of these predictions is possible in suspended tubes of sub-micron length.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/d95354b77b32b242815c5294bb08d240356bcc03
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
In Materials Chemistry
Citations in the corpus
- Mechanical systems in the quantum regime (2011, background): “ the sign is because the voltage source performs work when the capacitance changes [161], which should also be taken into account. 12This expression might appear different from those in Refs [135] and [158], but note that arccosh( x) = ln( + √ 2 − 1) ≈ ln(2 ) for ≫ 1. 19 n a n o t u b e D r a i n S o”