Graduate Lunch Talk: Aris Alexandradinata, Yale Physics, “Topological insulators”

Event time: 
Thursday, December 1, 2016 - 12:00pm to 1:00pm
Location: 
Sloane Physics Laboratory (SPL), 3rd Floor Lounge See map
217 Prospect St.
New Haven, CT 06511
(Location is wheelchair accessible)
Event description: 

Phases of matter with the same symmetry may nevertheless be distinct. If a phase of matter has an energy gap that prevents excitations, and is distinct from a solid of weakly-bound atoms, we say that this phase of matter is a topological insulator. I will introduce the theory for a topological insulator with a symmetry commonly found in crystals, and describe the subsequent experimental discovery in the compound KHgSb.

Reference: http://www.nature.com/nature/journal/v532/n7598/full/nature17410.html
Popular article: http://phys.org/news/2016-04-electrons-hourglass-surface-bizarre-materia…

Open to: 
Yale Community Only
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