Abstract
We report the observation of electron tunneling through coupled quantized states in stacked InAs quantum dots embedded in AlAs single barrier for the first time. We speculate that the series of observed dips in the second derivative of the current corresponds to four current peaks with relative coupling energy separation of 5–8 meV. Comparison of these results with calculational results based on the device structure revealed that the data fit reasonably well if we assume the effective mass of electrons in the dots to be (0.085±0.005) m 0. This result of energy dependent effective mass of electrons is consistent with the previous experiments on infrared spectroscopy and quasi-1D transport.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
