Possible high temperature superconductivity in Ti-doped A-Sc-Fe-As-O (A= Ca, Sr) system

G. F. Chen, T. -L. Xia, H. X. Yang +4

We report a systematic study on the effect of partial substitution of Sc${}^{3+}$ by Ti${}^{4+}$ in Sr${}_2$ScFeAsO${}_3$, Ca${}_2$ScFeAsO${}_3$ and Sr${}_3$Sc${}_2$Fe${}_2$As${}_2$O$_…