Spin excitation in LiFeAs

ORAL

Abstract

We used inelastic neutron scattering to study the spin excitations in LiFeAs. Clear spin excitations were found but there was no spin resonance. Surprisingly, very big spin gap exists in this material.

*Institute of Physics Chinese Academy of Sciences

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Authors

  • Meng Wang

    • Institute of Physics Chinese Academy of Sciences

  • Huiqian Luo

    • Institute of Physics Chinese Academy of Sciences

  • Xiancheng Wang

    • Institute of Physics Chinese Academy of Sciences

  • Yang Zhao

    • NIST Center for Neutron Reseach
    • NIST Center for Neutron Research

  • Jeffrey Lynn

    • NIST Center for Neutron Research, Gaithersburg, MD
    • National Institute of Standards and Technology
    • NIST Center for Neutron Research

  • Changqing Jin

    • Institute of Physics Chinese Academy of Sciences

  • Pengcheng Dai

    • University of Tennessee, Knoxville
    • University of Tennessee and ORNL
    • University of Tennessee, Physics Dept
    • University of Tennessee