title: Electron localization and magnetism in SrRuO3 with non-magnetic cation substitution.
abstract: The destruction of the ferromagnetism of alloyed SrRuO(3) can be caused by electron localization at the substitution sites. Among all the non-magnetic cations that enter the B site, Zr(4+) is the least disruptive to conductivity and ferromagnetism. This is because Zr(4+) does not cause any charge disorder, and its empty d electron states which are poorly matched in energy with the Ru t(2g)(4) states cause the least resonance scattering of Ru's d electrons. Conducting Sr(Ru, Zr)O(3) may be used as an electrode for perovskite-based thin film devices, while its insulating counterpart provides unprecedented magnetoresistance, seldom seen in other non-manganite and non-cobaltite perovskites.
authors.affiliation: Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China. weitong@hmfl.ac.cn
authors.forename: W
authors.initials: W
authors.lastname: Tong
authors.forename: F-Q
authors.initials: FQ
authors.lastname: Huang
authors.forename: I-W
authors.initials: IW
authors.lastname: Chen