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UID:647703e51e857864724154@ist.ac.at
DTSTART:20230615T130000
DTEND:20230615T140000
DESCRIPTION:Speaker: Lucia Vigliotti\nhosted by Maksym Serbyn\nAbstract: Jo
 sephson junctions based on the Quantum Spin Hall Effect (QSHE) [1\,2] offe
 r a promising playground to manipulate the helical edge states in view of 
 spintronics and superconducting spintronics applications. Despite an inten
 se research effort\, a theoretical model for some experimentally relevant 
 setups is still missing. In this context\, I will consider a QSH-based Jos
 ephson junction with a constriction between the edge channels [3]. In this
  system\, the transportof Cooper pairs is significantly affected by single
 -electron effects\, and peculiarsignatures emerge. In particular\, I will 
 show that the relevant flux quantum inthe interference pattern doubles [4]
 \, and an anomalous Josephson effect arises inthe presence of reconstructe
 d edges [5\,6]. Lastly\, I will describe how the Cooper pair injection and
  the interference oscillations are modified if the edge states are broadly
  extended across the junction [7].[1] S. Hart et al.\, Nat. Phys. 10\, 638
 -643 (2014).[2] V. S. Pribiag et al.\, Nat. Nanotechnol. 10(7)\, 593597 (2
 015).[3] J. Strunz et al.\, Nat. Phys. 16\, 8388 (2020).[4] L. Vigliotti e
 t al.\, New J. Phys. 24(5)\, 053017 (2022).[5] J. Wang et al.\, Phys. Rev.
  Lett. 118\, 046801 (2017).[6] L. Vigliotti et al.\, Nanomaterials 13(9)\,
  1497 (2023).[7] L. Vigliotti et al.\, Nanomaterials 13(3)\, 569 (2023). 
 OR join via Join Zoom Meeting:https://istaustria.zoom.us/j/68357805695?pwd
 =aHdHZTEvMHdIVzJwaFhyTXFuOXl0dz09 Meeting ID: 683 5780 5695Passcode: 9325
 96
LOCATION:Sunstone Bldg / Ground floor / Big Seminar Room B / 63 seats (I23.
 EG.102)\, ISTA
ORGANIZER:cpetz@ist.ac.at
SUMMARY:Lucia Vigliotti: New insights into Quantum Spin Hall-based Josephso
 n junctions
URL:https://talks-calendar.ista.ac.at/events/4257
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