Electronic Transport through Carbon Nanotube Quantum Dots
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Date: 12-16-2005
Start Time:
1:00pm
End Time: 2:00pm
Speaker: Pablo Jarillo-Herrero
From:
Delft University of Technology
Location: Interschool Lab, 7th floor, Schapiro/CEPSR
Hosted by:
Center for Integrated Science
Abstract:
Since their discovery in 1991 carbon nanotubes (CNTs) have attracted a great deal of attention because of their remarkable mechanical and electronic properties. At low temperatures, electronic transport through CNTs exhibits a wealth of quantum and mesoscopic phenomena, including charge quantization, finite size and many-body effects, which makes them an interesting system for quantum dot (QD) studies, in many aspects complementary to QDs in semiconductor heterostructures. In this talk I will review the basic electronic properties of CNTs and discuss our recent low temperature experiments on single CNT QDs, which show the wide range of physics regimes attainable with this system: from ambipolar single quantum dots in strong Coulomb blockade to quantum supercurrent transistors in the open QD regime.References:
P. Jarillo-Herrero et al. Nature 429, 389 (2004)
P. Jarillo-Herrero et al. Nature 434, 484 (2005)
P. Jarillo-Herrero et al. PRL 94, 156802 (2005)