Fe3O4/羧酸分子界面处氧含量对自旋界面的影响  

Effect of Oxygen Content at the Interface of Fe3O4/Carboxylic Acid on Spin Interface

作　　者：王申 魏珉 WANG Shen;WEI Min(School of Physics and Electronic Engineering,Shanxi University,Taiyuan 030006,China)

机构地区：[1]山西大学物理电子工程学院

出　　处：《山西大学学报（自然科学版）》2019年第4期873-877,共5页Journal of Shanxi University(Natural Science Edition)

摘　　要：大量工作表明铁磁金属/有机分子组成的界面具有十分丰富的物理特性,是有机自旋电子学的重要研究内容。然而铁磁金属表面极易氧化,从而极大地影响界面上的自旋输运,镧锶锰氧又因其居里温度较低,很难实现室温工作。文章利用自组装的方法分别在大气环境和氮气环境下制备了Fe3O4/烷基羧酸分子界面,证明了其自旋界面在0.5%的误差范围内没有受到氧化的影响,十分稳定,同时也能够在室温下稳定工作。A lot of work has shown that the interface composed of ferromagnetic metal/organic molecules has very rich physical properties and it is an important research content of organic spintronics. However, the surface of the ferromagnetic metal is extremely oxidized, which greatly affects the spin transport at the interface. The LSMO is also difficult to achieve working at room temperature due to its low Curie temperature. In this experiment, the molecular interface of Fe3O4/alkyl carboxylic acid was prepared by self-assembly method in the atmosphere and nitrogen atmosphere. It was proved that the spin interface is not affected by oxidation within 0.5% error bar and it is very stable,and it could work stably at room temperature.

关 键 词：自旋界面 FE3O4 有机自旋输运 隧穿磁电阻 

分 类 号：O469[理学—凝聚态物理]