Structural and magnetic properties of Ni doped SrRuO3

Abstract

SrRuO3 has been the subject of numerous studies since it is the only ferromagentic metal among 4d transition metal oxide. It has a Curie Temperature T ~ 165K. It has been established that the Curie Temperature is sensitive to chemical substitution and there are reports that Ru-site substitution with 3d metals including Mn, Co, Ni, Cu, Zn significantly decrease T. Detailed structural studies have been reported for Mn and Cu doped oxides and these show a transition to a tetragonal structure as a consequence of orbital ordering associated with the Jahn-Teller cation. Little is know of the analogous Ni doped materials.