A pr 2 02 2 Nematic fluctuations in the non-superconducting iron pnictide BaFe

Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China University of Chinese Academy of Sciences, Beijing 100049, China Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA Department of Physics, University of California, Berkeley, California 94720, USA School of Physics, Sun Yat-Sen University, Guangzhou 510275, China Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights NSW-2234, Australia Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, D-85748 Garching, Germany Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society, Tokai, Ibaraki 319-1106, Japan Lawrence Berkeley National Laboratory, Berkeley, 94720 California, USA Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA Department of Physics and Astronomy, Rice Center for Quantum Materials, Rice University, Houston, Texas 77005, USA Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China