Abstract
We study low frequency noise and noise correlation in two kinds of mesoscopic conductors to investigate the contribution of Fermi statistics in coherent electron transport. In Y-shaped triple quantum point contact structures, we observe multi-level switching noise which is much bigger than the expected contribution due to Fermi statistics. In a second device structure, a partially transmitting surface gate is used to split ballistic electrons injected from a quantum point contact. In our noise measurements on these second kind of structures, within the resolution of our noise measurement setup (10 −20 V 2/Hz), no excess noise correlation between the reflection and transmission voltages is observed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.