An Attempt to discriminate the origin of "magnetic resonance mode" by inelastic neutron scattering measurement on Fe(TeSe)

Fe(TeSe)の非弾性散乱により「磁気共鳴モード」の起源を区別する試み

石角 元志*; 樹神 克明   ; 梶本 亮一*  ; 中村 充孝   ; 稲村 泰弘  ; 池内 和彦*; Ji, S.*; 脇本 秀一  ; 新井 正敏; 社本 真一  

Ishikado, Motoyuki*; Kodama, Katsuaki; Kajimoto, Ryoichi*; Nakamura, Mitsutaka; Inamura, Yasuhiro; Ikeuchi, Kazuhiko*; Ji, S.*; Wakimoto, Shuichi; Arai, Masatoshi; Shamoto, Shinichi

In this talk, we report the result of an inelastic neutron scattering measurement performed on a 11g single crystal of Fe(TeSe) with the chopper spectrometer 4SEASONS (MLF, J-PARC). We attempt to judge whether the superconducting symmetry of Fe(TeSe) is s-wave or s-wave by comparing the spectra of dynamical spin susceptibility at normal and superconducting state based on Nagai and Kuroki's theory.