磁性
材料科学
自旋电子学
掺杂剂
凝聚态物理
兴奋剂
氧化物
磁滞
放松(心理学)
电子
磁性半导体
化学物理
纳米技术
铁磁性
光电子学
化学
物理
冶金
社会心理学
量子力学
心理学
作者
Hong Yan,Zhaoting Zhang,Shuanhu Wang,Xiangyang Wei,Changle Chen,Kexin Jin
标识
DOI:10.1021/acsami.8b03275
摘要
Magnetic two-dimensional electron gases at the oxide interfaces are always one of the key issues in spintronics, giving rise to intriguing magnetotransport properties. However, reports about magnetic two-dimensional electron gases remain elusive. Here, we obtain the magnetic order of LaAlO3/SrTiO3 systems by introducing magnetic dopants at the La site. The transport properties with a characteristic of metallic behavior at the interfaces are investigated. More significantly, magnetic-doped samples exhibit obvious magnetic hysteresis loops and the mobility is enhanced. Meanwhile, the photoresponsive experiments are realized by irradiating all samples with a 360 nm light. Compared to magnetism, the effects of dopants on photoresponsive and relaxation properties are negligible because the behavior originates from SrTiO3 substrates. This work paves a way for revealing and better controlling the magnetic properties of oxide heterointerfaces.
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