title: Triode for Magnetic Flux Quanta.
abstract: In an electronic triode, the electron current emanating from the cathode is regulated by the electric potential on a grid between the cathode and the anode. Here we demonstrate a triode for single quantum magnetic field carriers, where the flow of individual magnetic vortices in a superconducting film is regulated by the magnetic potential of striae of soft magnetic strips deposited on the film surface. By rotating an applied in-plane field, the magnetic strip potential can be varied due to changes in the magnetic charges at the strip edges, allowing accelerated or retarded motion of magnetic vortices inside the superconductor. Scaling down our design and reducing the gap width between the magnetic stripes will enable controlled manipulation of individual vortices and creation of single flux quantum circuitry for novel high-speed low-power superconducting electronics.
authors.affiliation: Materials Sciences Division, Argonne National Laboratory, 9700 South Cass Ave., Argonne, IL 60439, USA.
authors.forename: V K
authors.initials: VK
authors.lastname: Vlasko-Vlasov
authors.affiliation: Materials Sciences Division, Argonne National Laboratory, 9700 South Cass Ave., Argonne, IL 60439, USA.|Federal University of Sao Carlos, Physics Department, BR-13565905 Sao Carlos, SP, Brazil.
authors.forename: F
authors.initials: F
authors.lastname: Colauto
authors.affiliation: Materials Sciences Division, Argonne National Laboratory, 9700 South Cass Ave., Argonne, IL 60439, USA.|City University of New York, CUNY Queens College, 6530 Kissena Blvd., Queens, NY 11367, USA.
authors.forename: T
authors.initials: T
authors.lastname: Benseman
authors.affiliation: Center for Nanomaterials, Argonne National Laboratory, Argonne, IL 60439, USA.
authors.forename: D
authors.initials: D
authors.lastname: Rosenmann
authors.affiliation: Materials Sciences Division, Argonne National Laboratory, 9700 South Cass Ave., Argonne, IL 60439, USA.
authors.forename: W-K
authors.initials: WK
authors.lastname: Kwok