Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals
Abstract
Condensed-matter systems have recently become a fertile ground for the discovery of fermionic particles and phenomena predicted in high-energy physics; examples include Majorana fermions, as well as Dirac and Weyl semimetals. However, fermions in condensed-matter systems are not constrained by Poincare symmetry. Instead, they must only respect the crystal symmetry of one of the 230 space groups. Hence, there is the potential to find and classify free fermionic excitations in solid-state systems that have no high-energy counterparts.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 05, 2016
- Source ID
- 10.1126/science.aaf5037
Entities
People
- Andrei Bernevig
- Barry Bradlyn
- C. Felser
- Jennifer Cano
- M. G. Vergniory
- R. J. Cava
- Zhijun Wang
Organizations
- Army Research Office
- David and Lucile Packard Foundation
- Donostia International Physics Center
- National Science Foundation
- Princeton University