Dirac Materials from a Chemist's perspective

DIPC Seminars

Dr. Leslie Schoop, Max Planck Institute for Solid State Research
Donostia International Physics Center
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Dirac Materials from a Chemist's perspective In this talk I will introduce some basic chemical concepts about electron counting and bonding to show how they can be used as a guiding tools to discover new Dirac Semimetals. I will show how I used these principles to identify several materials of interest for Dirac physics. I will introduce the material Au2Pb, which is a superconducting Dirac semimetal, Ca3P2 a line node material and ZrSiS, which is the Dirac semimetal with the largest energy range of linearly dispersed bands. Lastly I will introduce a chemists view about Dirac materials that result form non-symmorphic symmetry. I will show how we used chemical concepts to experimentally verify a fourfold degenerate point at the Fermi level in ZrSiTe.