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Magnetotransport properties and fermiology in a layered rare-earth intermetallics

ORAL

Abstract

While a growing number of nonmagnetic topological phases are being proposed and discovered, the search for materials that combine nontrivial electronic topology with strong correlations has advanced at a slower pace [1]. Most studies have focused on doping magnetic elements into nonmagnetic topological materials [2] in which random disorder and low magnetic transition temperature are inevitable. Realization of magnetic topological state in stoichiometric compounds has the potential to enable an approach to the intrinsic properties of the system, and provide a chance to design candidates for higher temperature quantized anomalous Hall effect and axion electrodynamics [3]. We will discuss our recent attempts to design, synthesize, and characterize magnetic topological semimetals with a focus on layered materials with non-trivial magnetic order arising from rare-earth ions. We will describe transport, spectroscopic, and neutron scattering measurements as well as ab-initio calculations to develop an understanding of their underlying electronic/magnetic structure.
References
[1] T. Zhang et al., Nature 566, 475 (2019).
[2] C.-Z. Chang et al., Science 340, 167 (2013).
[3] R. Li et al., Nat. Phys. 6, 284 (2010).

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Presenters

  • Takashi Kurumaji

    Physics, MIT

Authors

  • Takashi Kurumaji

    Physics, MIT

  • Min Gu Kang

    Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology, Department of Physics, Massachusetts Institute of Technology, Physics, MIT

  • Shiang Fang

    Harvard University, Department of Physics and Astronomy, Rutgers University, Harvard, Department of Physics, Harvard University, Physics, Harvard University

  • David E Graf

    Florida State University, National High Magnetic Field Laboratory, Florida State University, Department of Physics, National High Magnetic Field Laboratory, Florida State University, Florida, USA, National High Magnetic Field Laboratory, National High Magnetic Field Lab, Florida State University, National High Magnetic Field Laboratory and Department of Physics, Florida State University, Florida State Univ, Natl High Magnetic Field Lab, National High Magnetic Field Lab, Tallahassee, FL 32310, USA, National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310, USA, National High Magnetic Field Laboratory-Florida State University, National High Magnetic Field Laboratory, Tallahassee, FL, NHMFL, Florida State University, NHMFL

  • Linda Ye

    Massachusetts Institute of Technology, Massachusetts Institute of Technology MIT, Department of Physics, Massachusetts Institute of Technology, Physics, MIT

  • Yang Zhao

    NIST Center of Neutron Research, National Institute of Standards and Technology, NIST Center for Neutron Research, NIST Center for Neutron Research, National Institute of Standards and Technology, NIST

  • Mun K. Chan

    Los Alamos National Laboratory, Pulse Field Facility, National High Magnetic Field Laboratory, Los Alamos National Laboratory, National High Magnetic Field Laboratory, LANL, University of Minnesota, NHMFL

  • Takehito Suzuki

    Department of Physics, Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology, Massachusetts Institute of Technology MIT, Physics, MIT

  • Riccardo Comin

    Massachusetts Institute of Technology MIT, Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA, Massachusetts Institute of Technology, Department of Physics, Massachusetts Institute of Technology, Physics, MIT

  • Jeffrey Lynn

    NIST Center for Neutron Research, National Institute of Standards and Technology, NIST, Center for Neutron Research, National Institute of Standards and Technology, National Institute of Standards and Technology, NIST Center for Neutron Research

  • Joseph G Checkelsky

    Department of Physics, Massachusetts Institute of Technology, Department of Physics, Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology, Massachusetts Institute of Technology MIT, Physics, MIT