Near Room-Temperature Ferromagnetic Phase Achieved in 4d Ruthenate via Interfacial Ferrimagnetic Coupling and Octahedral Rotation Engineering.

ABSTRACT: Transition metal oxides (TMOs) simultaneously possessing strong spin-orbit coupling, near room-temperature ferromagnetism, and excellent conductivity are scarce while they show great potential applications in oxide spintronics. Here, a TMO with all these features is reported, existing as an interfacial phase in the 4d Ca_0.5Sr_0.5RuO₃ layer sandwiched by two LaMnO₃ layers. This phase is well conductive and ferromagnetic in a wide temperature range, with the highest Curie temperature of ≈275 K among the 4d/5d-TMOs. Particularly, this interfacial phase shows a considerably improved saturation magnetization (≈2 µ_B/Ru, twice that of the bulk counterpart), and a greatly reduced coercive force. All these features are highly desired by the appl

SUBMITTER: Wang M 

PROVIDER: S-EPMC12412501 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature