Browsing by Author "Amet, F"
Now showing items 1-10 of 10
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Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes.
(Physical review letters, 2016-12-02)We investigate the critical current I_{C} of ballistic Josephson junctions made of encapsulated graphene-boron-nitride heterostructures. We observe a crossover from the short to the long junction regimes as the length of ... -
Chiral quasiparticle tunneling between quantum Hall edges in proximity with a superconductor
(Physical Review B, 2019-09-10)© 2019 American Physical Society. We study a two-terminal graphene Josephson junction with contacts shaped to form a narrow constriction, less than 100nm in length. The contacts are made from type-II superconducting contacts ... -
Investigation of Supercurrent in the Quantum Hall Regime in Graphene Josephson Junctions
(Journal of Low Temperature Physics, 2018-06-01)© 2018, Springer Science+Business Media, LLC, part of Springer Nature. In this study, we examine multiple encapsulated graphene Josephson junctions to determine which mechanisms may be responsible for the supercurrent observed ... -
One-dimensional edge contact to encapsulated MoS<inf>2</inf> with a superconductor
(AIP Advances, 2021-04-01)Establishing ohmic contact to van der Waals semiconductors such as MoS2 is crucial to unlocking their full potential in next-generation electronic devices. Encapsulation of few layer MoS2 with hBN preserves the material’s ... -
Subkelvin lateral thermal transport in diffusive graphene
(Physical Review B, 2019-03-29)© 2019 American Physical Society. In this work, we report on hot carrier diffusion in graphene across large enough length scales that the carriers are not thermalized across the crystal. The carriers are injected into graphene ... -
Superconductivity: When Andreev meets Hall
(Nature Physics, 2017-07-01) -
Supercurrent in Graphene Josephson Junctions with Narrow Trenches in the Quantum Hall Regime
(MRS Advances, 2018-01-01)© 2018 Materials Research Society. Coupling superconductors to quantum Hall edge states is the subject of intense investigation as part of the ongoing search for non-abelian excitations. Our group has previously observed ... -
Supercurrent in the quantum Hall regime.
(Science (New York, N.Y.), 2016-05)A promising route for creating topological states and excitations is to combine superconductivity and the quantum Hall (QH) effect. Despite this potential, signatures of superconductivity in the QH regime remain scarce, ... -
Valleytronics: Could use a break
(Nature Physics, 2015-12-01)
