Real time electron tunneling and pulse spectroscopy in carbon nanotube quantum dots.
basic_science · Level V
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- Record sourced from PubMed, PMID 18928322.
- Also identified by DOI 10.1021/nl802892q.
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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.