[23a-E204-1~10] 6.3 酸化物エレクトロニクス

▲ [23a-E204-4] Magnetic frustration of multiple phases in LaMnO₃ / LaNiO₃ superlattices

〇Ramchandra Sahoo¹、Shutong Zhang¹、Akira Ohtomo^1,2 (1.Tokyo Tech., Dept. Chem. Sci. Eng.、2.Tokyo Tech., MCES)

キーワード：Oxide superlattice, Spin-glass, Magnetic frustration

Strongly correlated electronic properties at the interface of manganese- and nickel-based perovskite oxides have recently attracted much attention irrespective of the importance of individual constituent materials. The reason behind such novelty is interfacial charge transfer. For example, LaMnO₃ is an antiferromagnetic insulator and LaNiO₃ is a paramagnetic metal in bulk form. However, their multilayers and superlattices (SLs) often exhibit ceramics (FM) behaviors. In addition, their In this study, we discuss magnetic frustration in [(LMO)_m / (LNO))_n ]_r SLs, magnetized by pulsed-laser deposition technique, through detailed analyzes of spin-glass behaviors.