Condensed Matter Seminar - "Possible discovery of Pines' Demon in Sr2RuO4"
- Event Type
- Seminar/Symposium
- Sponsor
- Physics - Condensed Matter
- Virtual
- Date
- Sep 24, 2021 1:00 pm
- Speaker
- Peter Abbamonte, University of Illinois at Urbana-Champaign
- Contact
- Stephen Bullwinkel
- bullwink@illinois.edu
- Phone
- 217-333-1652
- Views
- 155
- 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%2B2021/234020562