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DTSTAMP:20260416T170941
DTSTART:20130408T113000
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URL:https://murmitoyen.com/events/vanille/udem/detail/169486
LOCATION:Université de Montréal - Pavillon J.-Armand-Bombardier\, 5155\, 
 chemin de la rampe \, Montréal\, QC\, Canada\, H3T 2B2
SUMMARY:The Discovery of the First Topological Kondo Insulator: The tale of
  SmB6
DESCRIPTION:Maxim Dzero\, Department of Physics\, Kent State University\, K
 ent\, Ohio\, USAThe application of ideas developed in topology to the elec
 tronic band structure led to an intriguing discovery: materials can conduc
 t electricity at the surface while remaining insulating at the bulk. These
  materials\, called topological insulators\, will have transformative impa
 ct on spintronics\, low-power transport\, and quantum computing. The searc
 h for a true topological insulator took years because even best candidates
  exhibited significant bulk conductivity. Only recently\, literally in the
  past few months\, several experimental groups established that samarium h
 exaboride\, discovered in 1969 in Bell Labs\, is a first topological insul
 ator in its bulk form. In my talk\, I review the theory which paved the wa
 y for this discovery. I will explain how crystalline symmetry\, electron-e
 lectron interactions\, and orbital degeneracy contribute to protecting th
 e topological states in SmB6. In addition\, I will discuss the experiment
 al signatures of metallic surface states. Finally\, I formulate the theore
 tical principles for discovering new topological insulators with designabl
 e properties.Site web du groupe du Prof. Dzero'sCette conférence est pré
 sentée par le RQMP Versant Nord du Département de physique de l'Univers
 ité de Montréal et le Département de génie physique de Polytechnique M
 ontréal.
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