Discovery of Lorentz-violating Weyl fermion semimetal state in LaAlGe materials

2016/03/23 by Su‐Yang Xu, Su-Yang Xu, Xu, Su-Yang +45 · 6 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Rare-earth and actinide compounds #Topological Materials and Phenomena #cond-mat.mes-hall

paper · pdf · doi:10.48550/arxiv.1603.07318

This paper reports theoretical prediction and experimental discovery together. A detailed theoretical paper describing the topology of the full family of X(Lanthanides)AlGe materials will follow. Other related papers can be found at http://physics.princeton.edu/zahidhasangroup/index_WS.html

arxiv created 2016/03/27 · arxiv updated 2016/03/29

Abstract

We report theoretical and experimental discovery of Lorentz-violating Weyl fermion semimetal type-II state in the LaAlGe class of materials. Previously type-II Weyl state was predicted in WTe2 materials which remains unrealized in surface experiments. We show theoretically and experimentally that LaAlGe class of materials are the robust platforms for the study of type-II Weyl physics.

Citations

• Data tables for Lorentz andCPTviolation
• Observation of the Adler-Bell-Jackiw chiral anomaly in a Weyl semimetal

Cited by

• Magnetic and noncentrosymmetric Weyl fermion semimetals in the RAlGe family of compounds (R=rare<mml:mspace width="0.28em"/>earth)
• Superconductivity in type-II Weyl semimetals
• Saddle-like topological surface states on the TT′X family of compounds (T, T′ = Transition metal, X=Si, Ge)
• Anomalous Hall Effect in Type-I Weyl Metals
• Evidence of Topological Nodal-Line Fermions in ZrSiSe and ZrSiTe
• Type-II Weyl cone transitions in driven semimetals

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• Experimental discovery of Weyl semimetal TaAs
• Electronic Evidence for Type II Weyl Semimetal State in MoTe2
• Weyl semi-metals : a short review