Electronic double slit interferometers based on carbon nanotubes.
basic_science · Level V
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- Record sourced from PubMed, PMID 21899342.
- Also identified by DOI 10.1021/nl202360h.
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Abstract
We report the realization of an electronic double slit interferometer based on individual carbon nanotubes (SWNT). By performing transport spectroscopy on two parallel SWNTs in close proximity, we observe superposition of conductance oscillation with two different frequencies, "inverse" Coulomb blockade patterns, and Fano-like line-shapes with abrupt phase shifts. These features arise from coherent interference of electrons that traverse two conduction channels with significantly different transmission coefficients, underscoring the potential of SWNT for on-chip realization of electron optics.