Doping driven spin-flop transition in mixed 3d-5d compounds

POSTER

Abstract

The in-plane magnetization of the layered iridate Sr2IrO4 turns to out-of-plane upon partial substitution of ruthenium or manganese atoms for iridium. Based on first-principles electronic structure analysis, we present an effective low-energy Hamiltonian to model this doping effect. We found that the spin-flop transition originates from the M-Ir bond direction changes from the local easy axis to the hard axis as M changes from Ir to Ru or Mn.

*U.S. DOE-BES, Division of Materials Science and Engineering, under Contract No. DE-SC0012704.

Presenters

  • Weiguo Yin

    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory
    • CMPMS, Brookhaven National Laboratory

Authors

  • Weiguo Yin

    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory
    • CMPMS, Brookhaven National Laboratory

  • Wenhu Xu

    • Brookhaven National Laboratory

  • Robert Konik

    • Condensed Matter Physics & Material Science, Brookhaven National Lab
    • Brookhaven National Laboratory