Phase diagram of emergent orders of rare-earth nickelates

ORAL

Abstract

Phase diagram of Rare-earth nickelates, thin films and heterostructures, is a paradigmatic problem of strongly correlated material having strong coupling in between spin, orbital, lattice degrees of freedom. [1]
Recently, there have been suggestions on possible new emergent orders includes antiferromagnetism. [2]
In this talk, based on low energy hamiltonian of eg
manifold,[3] we discussed possible emergent orders of Rare-earth nickelates includes superconductivity, charge disproportionation, and magnetism. These emergent orders would be accessible by tuning material parameters such as interaction strength and effective crystal field.

[1] S. Catalani et al., Rep. Prog. Phys. 81 <a href="tel:<a href="tel:(2018) 046501">(2018) 046501</a>">(2018) 046501</a>
[2] H. Gui et al., Nature Communications 9 (2018)
[3] A. Subedi et al., Phys. Rev. B 91, 075128 (2015)

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Presenters

  • Minjae Kim

    Rutgers University, New Brunswick, College de France

Authors

  • Minjae Kim

    Rutgers University, New Brunswick, College de France

  • Gabriel Kotliar

    Rutgers University and Brookhaven National Laboratories, Department of Condensed Matter Physics and Materials Science, Upton, New York 11973, USA, Brookhaven National Laboratory, Rutgers University, New Brunswick, Brookhaven National Laboratory, Department of Physics, Rutgers University, Physics, Rutgers University, Rutgers University, New Jersey, USA, Physics and Astronomy Department, Rutgers University, Department of Physics and Astronomy, Rutgers University, NJ

  • Antoine Georges

    Collège de France, College de France, CCQ, Flatiron Institute, Simons Foundation, Center for Computational Quantum Physics, Flatiron Institue, Flatiron Institute - Simons Foundation, New York, USA, Center for Computational Quantum Physics, Flatiron Institute, NY, NY, 10010, CCQ, Flatiron Institute, Center for Computational Quantum Physics, Flatiron Institute