垂直磁各向异性的铁磁绝缘体LaSrMnIrO3

我们利用脉冲激光沉积系统，在不同晶向(001)、(110)和(111)-STO衬底上沉积 LSMO和 SIO的混合薄膜，比例为 0.3 u.c.的 LSMO和 0.2 u.c.的 SIO化学 计量 比为 La0.4Sr0.6Mn0.6Ir0.4O3 (LSMIO)。通过磁学和电学性能表征，我们发现，三种晶向的 LSMIO均呈现出强垂直磁各向异性磁性（磁各向异性能 ~ 106 erg/cm3）和绝缘性。通过与强自旋轨道耦合的 SIO材料结合，制成 LSMIO/SIO异质结构， 观测到了自旋霍尔磁电阻和自旋霍尔 -反常霍尔效应两种信号 ，证明了钙钛矿氧化物异质结构能够实现自旋流的高效产生、传输和探测。数据量约为32M。

We deposited mixed thin films of LSMO and SIO on (001)-, (110)-, and (111)-oriented STO substrates using a pulsed laser deposition system. The films were grown with a stacking ratio of 0.3 u.c. LSMO and 0.2 u.c. SIO, corresponding to the stoichiometric composition La₀.₄Sr₀.₆Mn₀.₆Ir₀.₄O₃ (LSMIO). Through magnetic and electrical property characterizations, we found that LSMIO thin films with all three crystal orientations exhibit strong perpendicular magnetic anisotropy with a magnetic anisotropy energy of ~10⁶ erg/cm³, as well as insulating behavior. By combining with SIO material featuring strong spin-orbit coupling to fabricate LSMIO/SIO heterostructures, we observed two characteristic signals: spin Hall magnetoresistance and spin Hall-anomalous Hall effect. This demonstrates that perovskite oxide heterostructures can enable efficient generation, transport, and detection of spin currents. The total dataset size is approximately 32 MB.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于铁磁绝缘体La0.4Sr0.6Mn0.6Ir0.4O3（LSMIO）材料，通过脉冲激光沉积制备薄膜并表征其强垂直磁各向异性和绝缘特性。研究还涉及LSMIO/SIO异质结构，观测到自旋霍尔磁电阻等信号，验证了钙钛矿氧化物在自旋电子学中实现自旋流高效操控的潜力。