Observation of a G-type short range antiferromagnetic order in expanded FeS

ORAL

Abstract

We report structural studies on FeS single crystals obtained from RbxFe2-yS2 using a hydrothermal method. Neutron diffraction measurements show the iron vacancy order and block antiferromagnetic order in RbxFe2-yS2 are absent in the samples. Interestingly, a G-type short range antiferromagnetic order with moments aligned along the c-axis is observed. Its Neel temperature is determined at 165 K. The data reveal that the short range antiferromagnetic order corresponds to expended inter-layer space of FeS. Our results indicate that FeS is in the vicinity of a magnetically ordered ground state and provide insights on understanding a variety of phenomena observed on FeS and ongoing research on the iron chalcogenide FeSe1-xSx system.

*The U.S. Department of Energy under Contract No. DE-AC02-05-CH11231 within the Quantum Materials Program (KC2202). The research at Sun Yat-Sen University was supported by the Hundred Talents program of the university.

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Presenters

  • Meng Wang

    • School of Physics, Sun Yat-Sen University

Authors

  • Meng Wang

    • School of Physics, Sun Yat-Sen University

  • Ming Yi

    • Physics Department, University of California at Berkeley
    • Physics, University of California, Berkeley
    • Univ of California - Berkeley
    • University of California - Berkeley
    • University of California

  • Zhijun Xu

    • NIST Center for Neutron Research, National Institute of Standards and Technology
    • NIST -Natl Inst of Stds & Tech
    • NIST Center for Neutron Research
    • National Institute of Standards and Technology

  • Huibo Cao

    • Neutron Scattering Division, Oak Ridge National Laboratory
    • Oak Ridge National Laboratory
    • Quantum Condensed Matter Division, Oak Ridge National Laboratory
    • Neutron Sciences Directorate, Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Lab
    • Oak Ridge National Lab
    • Oak Ridge Natl Lab
    • Quantum Condensed Matter Division , Oak Ridge National Laboratory

  • E. Bourret-Courchesne

    • Materials Science Division, Lawrence Berkeley National Laboratory
    • Lawrence Berkeley National Labratory

  • Jeffrey Lynn

    • NIST Center for Neutron Research
    • NIST center for Neutron Research
    • NIST Center for Neutron Research, National Institute of Standards and Technology
    • National Institute of Standards and Technology
    • NIST
    • NCNR, NIST -Natl Inst of Stds & Tech

  • Robert Birgeneau

    • Physics Department, University of California at Berkeley
    • Physics, University of California, Berkeley
    • UC Berkeley