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SUMMARY:New Paths to Unconventional Topological Superconductivity
DTSTART:20130412T141500
DTSTAMP:20260929T061553Z
UID:486d8e4923c238f74bf93060acc4e538c718540706eb9fa44a89d651
CATEGORIES:Conferences - Seminars
DESCRIPTION:R. Thomale\, Institut of Theoretical Physics - EPFL\nWe report
  on our recent progress regarding classes of materials which exhibit d+id 
 superconductivity\, where topologically nontrivial pairing phases can emer
 ge. Specifically\, motivated by recent experimental progress\, we show tha
 t graphene doped to the van Hove regime can give rise to a plethora of int
 eresting ordering instabilities such as spin density wave and superconduct
 ivity. As a function of system parameters such as doping and range of Coul
 omb interaction\, we explain which instability is favored by the system\, 
 and analyze the effect of long-range interactions on superconductivity giv
 ing rise to a competition between singlet d+id and triplet f wave. We furt
 her report on our investigations of Cobaltate superconductors where we bel
 ieve the experimental evidence can be reconciled by an anisotropic d+id su
 perconducting gap. We also outline our work in progress for other compound
 s which we believe are promising to stabilize such interesting topological
  superconducting states of matter.
LOCATION:PH L1 503 http://plan.epfl.ch/?room=PHL1503
STATUS:CONFIRMED
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