title: Nanoscale Tipping Bucket Effect in a Quantum Dot Transistor-Based Counter.
abstract: Electronic circuits composed of one or more elements with inherent memory, that is, memristors, memcapacitors, and meminductors, offer lower circuit complexity and enhanced functionality for certain computational tasks. Networks of these elements are proposed for novel computational paradigms that rely on information processing and storage on the same physical platform. We show a nanoscaled memdevice able to act as an electronic analogue of tipping buckets that allows reducing the dimensionality and complexity of a sensing problem by transforming it into a counting problem. The device offers a well adjustable, tunable, and reliable periodic reset that is controlled by the amounts of transferred quantum dot charges per gate voltage sweep. When subjected to periodic voltage sweeps, the quantum dot (bucket) may require up to several sweeps before a rapid full discharge occurs thus displaying period doubling, period tripling, and so on between self-governing reset operations.
authors.affiliation: Technische Physik and Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Physikalisches Institut, Universität Würzburg , Am Hubland, D-97074 Würzburg, Germany.
authors.forename: F
authors.identifier: 0000-0003-2274-0651
authors.initials: F
authors.lastname: Hartmann
authors.affiliation: Technische Physik and Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Physikalisches Institut, Universität Würzburg , Am Hubland, D-97074 Würzburg, Germany.
authors.forename: P
authors.initials: P
authors.lastname: Maier
authors.affiliation: Departamento de Física, Universidade Federal de São Carlos , 13565-905, São Carlos, São Paulo, Brazil.|Institute for Research in Electronics and Applied Physics, University of Maryland , College Park, Maryland 20742, United States.
authors.forename: M
authors.initials: M
authors.lastname: Rebello Sousa Dias
authors.affiliation: Technische Physik and Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Physikalisches Institut, Universität Würzburg , Am Hubland, D-97074 Würzburg, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Göpfert
authors.affiliation: Departamento de Física, Universidade Federal de São Carlos , 13565-905, São Carlos, São Paulo, Brazil.
authors.forename: L K
authors.initials: LK
authors.lastname: Castelano
authors.affiliation: Technische Physik and Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Physikalisches Institut, Universität Würzburg , Am Hubland, D-97074 Würzburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Emmerling
authors.affiliation: Technische Physik and Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Physikalisches Institut, Universität Würzburg , Am Hubland, D-97074 Würzburg, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Schneider
authors.affiliation: Technische Physik and Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Physikalisches Institut, Universität Würzburg , Am Hubland, D-97074 Würzburg, Germany.|SUPA, School of Physics and Astronomy, University of St. Andrews , St. Andrews, KY16 9SS, United Kingdom.
authors.forename: S
authors.initials: S
authors.lastname: Höfling
authors.affiliation: Technische Physik and Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Physikalisches Institut, Universität Würzburg , Am Hubland, D-97074 Würzburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Kamp
authors.affiliation: Department of Physics and Astronomy, University of South Carolina , Columbia, South Carolina 29208, United States.
authors.forename: Y V
authors.initials: YV
authors.lastname: Pershin
authors.affiliation: Departamento de Física, Universidade Federal de São Carlos , 13565-905, São Carlos, São Paulo, Brazil.
authors.forename: G E
authors.initials: GE
authors.lastname: Marques
authors.affiliation: Departamento de Física, Universidade Federal de São Carlos , 13565-905, São Carlos, São Paulo, Brazil.
authors.forename: V
authors.identifier: 0000-0002-7897-3860
authors.initials: V
authors.lastname: Lopez-Richard
authors.affiliation: Technische Physik and Wilhelm Conrad Röntgen Research Center for Complex Material Systems, Physikalisches Institut, Universität Würzburg , Am Hubland, D-97074 Würzburg, Germany.
authors.forename: L
authors.initials: L
authors.lastname: Worschech
keywords: Quantum dot transistor; counter; floating gate; memcapacitor; periodic reset; quantum capacitance