Abstract
A mesoscopic ring subject to the Rashba spin-orbit interaction and sequentially coupled to an interacting quantum dot, in the presence of an Aharonov-Bohm flux, is proposed as a flux-tunable tunneling diode. The analysis of the conductance by means of the nonequilibrium Green's function technique shows an intrinsic bistability at varying Aharonov-Bohm flux when $2Ug\ensuremath{\pi}\ensuremath{\Gamma}$, where $U$ is the charging energy on the dot and $\ensuremath{\Gamma}$ is the effective resonance width. The bistability properties are discussed in connection with spin-switch effects and logical storage device applications.
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.
