Real Time Electron Tunneling and Pulse Spectroscopy in Carbon Nanotube Quantum Dots
arXiv:0810.0089 · doi:10.1021/nl802892q
Abstract
We investigate a Quantum Dot (QD) in a Carbon Nanotube (CNT) in the regime where the QD is nearly isolated from the leads. An aluminum single electron transistor (SET) serves as a charge detector for the QD. We precisely measure and tune the tunnel rates into the QD in the range between 1 kHz and 1 Hz, using both pulse spectroscopy and real - time charge detection and measure the excitation spectrum of the isolated QD.
12 pages, 5 figures
References in corpus (8)
- Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
- Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
- Orbital Kondo effect in carbon nanotubes
- Spin-orbit interaction and anomalous spin relaxation in carbon nanotube quantum dots
- Excited-state spectroscopy on a nearly-closed quantum dot via charge detection
- Excited state spectroscopy in carbon nanotube double quantum dots
- Measuring current by counting electrons in a nanowire quantum dot
- Electron spin relaxation in semiconducting carbon nanotubes: the role of hyperfine interaction