Phases under magnetic field and domain wall physics in pyrochlore iridates

ORAL

Abstract

Rare earth pyrochlore iridates (R2Ir2O7, R=Pr, Y, etc.) incorporate both strong spin-orbit coupling and correlations, and consequently can have distinct physical properties and novel topological phases. We theoretically study the effects of magnetic field and metal-insulator transition in these materials, with a combination of ab initio calculation and Hartree-Fock method. Various possible magnetic phases are explored. Metallic magnetic domain wall states are found under a substantial range of correlation strength U. Finally, we will compare results with recent experiments.

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Presenters

  • Ru Chen

    Physics, University of California, Berkeley; Lawrence Berkeley National Laboratory

Authors

  • Ru Chen

    Physics, University of California, Berkeley; Lawrence Berkeley National Laboratory

  • Ashvin Vishwanath

    Physics, Harvard University, Physics, Harvard university, Harvard Univ, Physics, Harvard, Harvard University

  • Jeffrey Neaton

    Molecular Foundry, Lawrence Berkeley National Laboratory; Department of Physics, University of California, Berkeley; Kavli Energy Nanosciences Institute at Berkeley, Physics, University of California, Berkeley; Lawrence Berkeley National Laboratory, Department of Physics, University of California, Univ of California - Berkeley, Lawrence Berkeley Natl Lab, Materials Science Division, Lawrence Berkeley National Laboratory, Molecular Foundry, Lawrence Berkeley National Lab, Physics, University of California, Berkeley, Department of Physics UCB; Molecular Foundry LBNL; Kavli ENSI, Lawrence Berkeley National Laboratory, Department of Physics, Univ of California - Berkeley, Lawrence Berkeley National Lab and University of California - Berkeley