![]() |
COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. | ![]() |
University of Cambridge > Talks.cam > Semiconductor Physics Group Seminars > Quantum transport in mesoscopic graphene/superconductor hybrid devices
![]() Quantum transport in mesoscopic graphene/superconductor hybrid devicesAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Teri Bartlett. Graphene’s band structure and established device fabrication methods make it an ideal starting point for investigating Dirac physics in a range of materials, notably the surface states of bulk topological insulators. A better understanding of phenomena related to the Dirac cone is required, particularly in devices with superconducting contacts. In graphene driven superconducting by the proximity effect, zero energy modes are predicted in vortex cores. To explore whether the presence of such modes can be detected solely through charge transport, we have fabricated Josephson junction arrays on graphene. We find that the mean conductance and universal conductance fluctuations are enhanced below the critical temperature and field of the superconductor, with greater enhancement away from the graphene Dirac point. We also observe features in the magnetoconductance at rational fractions of flux quanta per array unit cell, which we attribute to the formation of vortices in the arrays. This talk is part of the Semiconductor Physics Group Seminars series. This talk is included in these lists:
Note that ex-directory lists are not shown. |
Other listsSchool of Technology Research Funding Masterclasses Professor Sir Brian Heap Seminars for the Centre for Environmental and Industrial Flows Conservation seminars Motivic stable homotopy theory study group Glanville LectureOther talksTBC The Warsaw Uprising in Polish Popular Culture after 1989 TODAY Foster Talk - "Paraspeckles, TDP-43 & alternative polyadenylation: how regulation of a membraneless compartment guides cell fate" Athena SWAN Network Event: Changing Culture Making Refuge: Cambridge & the Refugee Crisis Academic CV Workshop Cambridge-Lausanne Workshop 2018 - Day 1 The role of myosin VI in connexin 43 gap junction accretion 'Politics in Uncertain Times: What will the world look like in 2050 and how do you know? Unbiased Estimation of the Eigenvalues of Large Implicit Matrices A stochastic model for understanding PIN polarity in isolated cells |