Inelastic neutron scattering study of iron-based superconductors FeSeTe and FeSe; Nematic effect of magnetic scattering spectra

Shamoto, Shinichi; Kodama, Katsuaki; Kajimoto, Ryoichi; Nakamura, Mitsutaka; Ishikado, Motoyuki*; Watashige, Tatsuya*; Kasahara, Shigeru*; Matsuda, Yuji*; Shibauchi, Takasada*; Arai, Masatoshi*

no journal, , 

Iron-based superconductors FeSeTe and FeSe have been studied by inelastic neutron scattering measurement. In contrast of FeSe, FeSeTe exhibits temperature dependent incommensurability in magnetic spectrum with no clear structural transition. We find a jump in the incommensurability at about 70 K.