Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session F59: Computational approaches to magnetic topological materials discovery
8:00 AM–11:00 AM,
Tuesday, March 3, 2020
Room: Mile High Ballroom 3C
Sponsoring
Unit:
DMP
Abstract: F59.00007 : New classes of band degeneracies in magnetic materials universe
Presenter:
Jian Yang
(Chinese Academy of Sciences,Institute of Physics)
Author:
Jian Yang
(Chinese Academy of Sciences,Institute of Physics)
The new nodes protected by magnetic space groups are unified and classified using the group cohomology of the corresponding point group.
We propose a method to find if the effective theory of any new degeneracy has linear dispersion in all three directions, and use the method to identify all linear-dispersing nodes of four or higher degeneracy.
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