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SUMMARY:The Fascinating Quantum World of Two-dimensional Materials: Intera
 ction and Topological Effects
DTSTART:20170721T111500
DTEND:20170721T121500
DTSTAMP:20260916T050033Z
UID:59f3a7fcc5d65a9dbdd9f1df737a83124b34e658e24256042c30f597
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof.  Steven G. Louie\, University of California at Berkeley
 \, USA\nInteraction\, symmetry and topological effects\, as well as enviro
 nmental screening\, dominate many properties of reduced-dimensional system
 s and nanostructures. These effects often lead to manifestation of counter
 -intuitive concepts and phenomena that may not be so prominent or have not
  been seen in bulk materials.  In this talk\, I present some fascinating 
 new physical phenomena found in recent theoretical and computational studi
 es of atomically thin two-dimensional materials.  A number of highly inte
 resting and unexpected phenomena have been discovered – e.g.\, strongly 
 bound excitons with unusual energy level structures and optical selection 
 rules\; light-like (massless) exciton dispersion\; tunable optical\, magne
 tic and plasmonic properties\; electron supercollimation by 1D disorder\; 
 and novel topological phases.  We describe their physical origin and comp
 are theoretical predictions with experimental results when available.\n\n1
 1th NCCR MARVEL "Distinguished Lecture"\nNCCR MARVEL - Events
LOCATION:MXF 1 https://plan.epfl.ch/?room==MXF%201
STATUS:CONFIRMED
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