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DTSTART:20210328T030000
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DTSTAMP:20260404T180248Z
UID:1633960800@ist.ac.at
DTSTART:20211011T160000
DTEND:20211011T170000
DESCRIPTION:Speaker: Vidya Madhavan\nhosted by Maskym Serbyn\nAbstract: Top
 ological superconductors represent a fundamentally new phase of matter. Si
 milar to topological insulators\, the non-trivial topological characterist
 ics of a topological superconductor dictate the presence of a topological 
 edge states composed of Bogoliubov quasiparticles which live inside and sp
 an the superconducting gap. The intense interest in these materials stems 
 from the fact that Bogoliubov excitations inside the gap of a topological 
 superconductor are predicted to have all the characteristics of Majorana F
 ermions. A chiral p-wave superconductor which is topologically non-trivial
  is a natural platform for realizing these Majorana modes. In this talk I 
 present scanning tunneling microscopy (STM) data on the newly discovered h
 eavy fermion superconductor\, UTe2 with a TC of 1.6K. I will show signatur
 es of coexisting Kondo effect and superconductivity which show competing s
 patial modulations within one unit-cell.  STM spectroscopy at step edges 
 show signatures of chiral in-gap states\, predicted to exist at the bounda
 ries of a topological superconductor. Combined with existing data indicati
 ng triplet pairing\, the presence of chiral edge states suggests that UTe2
  is a strong candidate material for chiral-triplet topological superconduc
 tivity.
LOCATION:Raiffeisen Lecture Hall\, ISTA
ORGANIZER:isabella.riedler@ist.ac.at
SUMMARY:Vidya Madhavan: Institute Colloquium: Vidya Madhavan (Univ. of Illi
 nois Urbana-Champaign)
URL:https://talks-calendar.ista.ac.at/events/3148
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