Room-temperature magnetism in LaVO 3 / SrVO 3 superlattices by geometrically confined doping

摘要: Based on the Hubbard model of strongly correlated systems, a reduction in bandwidth electrons can yield substantial change properties material. One method to modify is geometrically confined doping, i.e., introduction (thin) dopant layer In this Rapid Communication, magnetic ${\text{LaVO}}_{3}/{\text{SrVO}}_{3}$ superlattices, which doping produced by one monolayer thick ${\text{SrVO}}_{3}$ film, are presented. contrast solid solution ${\text{La}}_{1\ensuremath{-}x}{\text{Sr}}_{x}{\text{VO}}_{3}$, such superlattices have finite magnetization up room temperature. Furthermore, total superlattice depends thickness ${\text{LaVO}}_{3}$ layer, indicating an indirect coupling that emerges at adjacent layers. Our results show like it be achieved reveals way induce otherwise inaccessible phases possibly even with large temperature scale.