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DTSTAMP:20260424T102116Z
UID:6266acc1e5b7a466572332@ist.ac.at
DTSTART:20220705T110000
DTEND:20220705T120000
DESCRIPTION:Speaker: Javad Shabani\nhosted by Andrew Higginbotham\nAbstract
 : A central goal in condensed matter physics is to understand and control 
 the order parameter characterizing the collective state of electrons in qu
 antum heterostructures. For example\, new physical behaviors can emerge th
 at are absent in the isolated constituent materials.  With regards to supe
 rconductivity this has opened a whole new area of investigation in the for
 m of topological superconductivity. This type of superconductivity is expe
 cted to host exotic quasi-particle excitations including Majorana bound st
 ates which hold promise for fault-tolerant quantum computing. In this talk
 \, we first discuss the important role of epitaxial superconductor-semicon
 ductor hybrid systems as an enabling materials platform. We present unprec
 edented values of transparency and induced gap that could allow us to reac
 h into previously unexplored parameter regimes. In wide Josephson junction
 s exposed to magnetic field\, we observe a minimum of critical current acc
 ompanied with a phase jump in the superconducting phase. We discuss this o
 bservation as a signature of a transition between trivial and topological 
 superconductivity. These findings in addition to new directions in proximi
 tizing edge modes reveal a versatile two-dimensional platform to explore m
 esoscopic and topological superconductivity
LOCATION:Heinzel Seminar Room / Office Bldg West (I21.EG.101)\, ISTA
ORGANIZER:swiddman@ist.ac.at
SUMMARY:Javad Shabani: Towards Topological Superconductivity in Epitaxial S
 uperconductor-Semiconductor Materials Systems
URL:https://talks-calendar.ista.ac.at/events/3724
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