Computational search for magnetic Weyl semimetals in rare-earth compounds

ORAL

Abstract

Weyl fermions are of interests for both basic science and future technology. Weyl points in electronic band structure can be generated by breaking inversion or/and time-reversal symmetry to realize linear crossings having monopoles of Berry curvature. Here we have used high throughput band structure calculations based on density functional theory to search for magnetic Weyl semimetals in rare-earth compounds. The existence of Weyl points is identified by calculating Berry curvature. We find that the magnetic Weyl points depend on the specific magnetic ordering structure.

*This work is supported by the Center for Advancement of Topological Semimetals, an Energy Frontier Research Center funded by the US DOE Basic Energy Sciences, through the Ames Laboratory under Contract No. DE-AC02-07CH11358. NHJ is funded by the Gordon and Betty Moore Foundation’s EPiQS Initiative through Grant GBMF4411.

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Presenters

  • Lin-Lin Wang

    • Ames Laboratory
    • Iowa State University

Authors

  • Lin-Lin Wang

    • Ames Laboratory
    • Iowa State University

  • Na Hyun Jo

    • Iowa State University
    • Iowa State University and Ames Laboratory
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA
    • Department of Physics & Astronomy, Iowa State University
    • Department of Physics and Astronomy, Iowa State University
    • Department of physics and astronomy, Iowa State University/Ames Laboratory
    • Physics, Iowa State University/Ames Laboratory

  • Yun Wu

    • Iowa State University
    • Physics, Iowa State University/Ames Laboratory

  • Brinda Kuthanazhi

    • Iowa State University
    • Department of Physics & Astronomy, Iowa State University
    • Department of Physics and Astronomy, Iowa State University
    • Physics, Iowa State University/Ames Laboratory

  • Adam Kaminski

    • Iowa State University
    • Physics, Iowa State University/Ames Laboratory

  • Paul Canfield

    • Ames Laboratory and Dept. of Physics, Iowa State University
    • Ames Laboratory, U.S. DOE, Iowa State University, Ames, Iowa 50011, USA.
    • Ames Laboratory
    • Iowa State University
    • Department of Physics, Iowa State University, Ames Laboratory, Ames, Iowa 50011, USA
    • Ames Laboratory, Iowa State University
    • Ames Laboratory/Iowa State University
    • Iowa State University and Ames Laboratory
    • Ames Laboratory and Iowa State University, Ames, IA, USA
    • Ames Laboratory and Dept. of Phys. and Astro.,, Iowa State Univ.
    • Ames Laboratory and Department of Physics & Astronomy, Iowa State University, Ames, IA 50010, USA
    • Ames Lab & Dept of Physics and Astronomy, Iowa State University
    • Department of Physics & Astronomy, Iowa State University
    • Department of physics and astronomy, Iowa State University/Ames Laboratory
    • Physics, Iowa State University/Ames Laboratory
    • Ames Laboratory & Iowa State University
    • Physics, Iowa State University