Hole-doping-induced melting of spin-state ordering in PrBaCo2O5.5+x

Ping Miao, Xiaohuan Lin, Sanghyun Lee +8

The layered perovskite cobaltite RBaCo${}_2$O${}_{5.5}$ (R: rare-earth elements or Yttrium) exhibits an abrupt temperature-induced metal$-$insulator transition (MIT) and has been attri…