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Condensed Matter Seminar - "Possible discovery of Pines' Demon in Sr2RuO4"

Event Type
Seminar/Symposium
Sponsor
Physics - Condensed Matter
Location
via Zoom
Virtual
wifi event
Date
Sep 24, 2021   1:00 pm  
Speaker
Peter Abbamonte, University of Illinois at Urbana-Champaign
Contact
Stephen Bullwinkel
E-Mail
bullwink@illinois.edu
Phone
217-333-1652
Views
116
Originating Calendar
Physics - Condensed Matter Seminar

In 1956 David Pines published a paper predicting the existence of a gapless collective mode in multi-component Fermi liquids. Because it involves distinct motion of different species of electrons he called it a D.E.M.-on or "Demon."  Definitive evidence for the existence of this particle has, up to now, not been found. In this talk I will present momentum-resolved EELS (M-EELS) and RPA calculations suggesting that we have finally observed this excitation in Sr2RuO4, a multiband Fermi liquid.

Zoom link will be forwarded to Condensed Matter Seminar email list. For a copy of the link or to be added to the email list, please contact Stephen Bullwinkel (bullwink@illinois.edu).

Recordings of Condensed Matter Seminar events can be found on mediaspace: https://mediaspace.illinois.edu/channel/Condensed%2BMatter%2BSeminar%2BTalks%2BFall%2B2020/178724052

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