Role of Ga doping in the kagome ferromagnet YMn6Sn6-xGax

ORAL

Abstract

Kagome magnets are an interesting class of materials and an ideal platform to study the interplay between topology, magnetism, and electronic correlation. YMn6Sn6 is one such compound which orders with a commensurate antiferromagnetic helical structure below 345 K and exhibits an incommensurate double helical structure (DH) upon further cooling. Previous studies have shown that YMn6Sn6-xGax evolves from incommensurate antiferromagnet to ferromagnet for x>0.2, but its microscopic origin has remained unclear. Here, we will talk about the role of Ga doping on the electronic and magnetic properties for YMn6Sn6-xGax (x~1).

* N.J.G and H.B acknowledge the support from the NSF CARRIER award DMR-2143903. I.I.M acknowledges support from the U.S. Department of Energy throgh the grant No. DE-SC0021089.

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Presenters

  • Hari Bhandari

    Department of Physics and Astronomy, University of Notre Dame; Stavropoulos Centre for Complex Quantum Matter, University of Notre Dame, University of Notre Dame

Authors

  • Hari Bhandari

    Department of Physics and Astronomy, University of Notre Dame; Stavropoulos Centre for Complex Quantum Matter, University of Notre Dame, University of Notre Dame

  • Po-hao Chang

    Department of Physics and Astronomy, George Mason University

  • Resham B Regmi

    Department of Physics and Astronomy, University of Notre Dame; Stavropoulos Centre for Complex Quantum Matter, University of Notre Dame

  • Mohamed E Gazzah

    Department of Physics and Astronomy, University of Notre Dame; Stavropoulos Centre for Complex Quantum Matter, University of Notre Dame

  • Igor I Mazin

    George Mason University, Department of Physics and Astronomy, George Mason University; Quantum Science and Engineering Centre, George Mason University

  • Nirmal J Ghimire

    Department of Physics and Astronomy, University of Notre Dame; Stavropoulos Centre for Complex Quantum Matter, University of Notre Dame, University of Notre Dame