High-pressure synthesis of bilayer nickelate Sr${}_3$Ni${}_2$O${}_5$Cl${}_2$ with tetragonal crystal structure

Kazuki Yamane, Yoshitaka Matsushita, Shintaro Adachi +5

A novel oxychloride, Sr${}_3$Ni${}_2$O${}_5$Cl${}_2$, was synthesized for the first time under high pressure of 10 GPa at 1400 ${}^{\circ }$C, motivated by a theoretical prediction of…