Disorder and physical properties in FeSrYCuO magnetic superconductor

Mochiku, Takashi*; Hata, Yoshiaki*; Hoshikawa, Akinori*; Iwase, Kenji*; Sulistyanintyas, D.*; Oguro, Hidetoshi*; Ishigaki, Toru*; Igawa, Naoki; Tsuchiya, Yoshinori*; Iwai, Hideo*; et al.

no journal, , 

FeSrYCuO is expected to coexhibit superconductivity and magnetism, which has a tetragonal structure with the oxygen defect and the substitution between Cu and Fe. We have performed neutron powder diffraction of the FeSrYCuO system to investigate the relation between the crystal structure and the physical properties.