中国物理B ›› 2014, Vol. 23 ›› Issue (1): 18104-018104.doi: 10.1088/1674-1056/23/1/018104

所属专题： TOPICAL REVIEW — Magnetism, magnetic materials, and interdisciplinary research

• SPECIAL TOPIC --- Non-equilibrium phenomena in soft matters • 上一篇    下一篇

The basis of organic spintronics：Fabrication of organic spin valves

陈彬彬, 姜生伟, 丁海峰, 蒋正生, 吴镝   

  1. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
  • 收稿日期:2013-11-30 修回日期:2013-12-27 出版日期:2013-11-12 发布日期:2013-11-12
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant Nos. 2010CB923402 and 2013CB922103), the National Natural Science Foundation of China (Grant Nos. 11222435, 10974084, and 11023002), the Priority Academic Program Development of Jiangsu Higher Education Institutions, China, and the Fundamental Research Funds for the Central Universities, China.

The basis of organic spintronics：Fabrication of organic spin valves

Chen Bin-Bin (陈彬彬), Jiang Sheng-Wei (姜生伟), Ding Hai-Feng (丁海峰), Jiang Zheng-Sheng (蒋正生), Wu Di (吴镝)   

  1. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
  • Received:2013-11-30 Revised:2013-12-27 Online:2013-11-12 Published:2013-11-12
  • Contact: Wu Di E-mail:dwu@nju.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant Nos. 2010CB923402 and 2013CB922103), the National Natural Science Foundation of China (Grant Nos. 11222435, 10974084, and 11023002), the Priority Academic Program Development of Jiangsu Higher Education Institutions, China, and the Fundamental Research Funds for the Central Universities, China.

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摘要： Organic spintronics focuses on utilizing the spin degree of freedom in organic materials because of the long spin relaxation time. The vertical organic spin valve (OSV) is a typical sample structure used to study the spin transport phenomena. However, the fabrication of high quality OSVs is difficult, which results in controversial experiment results and hence hinders the development of organic spintronics. In this work, we describe our recent study on the fabrication of typical vertical organic spin valves, La0.67Sr0.33MnO3 (LSMO)/Alq3/Co. The LSMO bottom electrodes are annealed to obtain an atomically smooth surface and improved magnetic properties. The top Co electrodes are deposited by an indirect deposition method to reduce the interfusion between Co and Alq3. The controlled fabrication process provides much better performance and sample yield of OSVs.

关键词: organic spintronics, organic spin valves, magnetoresistance

Abstract: Organic spintronics focuses on utilizing the spin degree of freedom in organic materials because of the long spin relaxation time. The vertical organic spin valve (OSV) is a typical sample structure used to study the spin transport phenomena. However, the fabrication of high quality OSVs is difficult, which results in controversial experiment results and hence hinders the development of organic spintronics. In this work, we describe our recent study on the fabrication of typical vertical organic spin valves, La0.67Sr0.33MnO3 (LSMO)/Alq3/Co. The LSMO bottom electrodes are annealed to obtain an atomically smooth surface and improved magnetic properties. The top Co electrodes are deposited by an indirect deposition method to reduce the interfusion between Co and Alq3. The controlled fabrication process provides much better performance and sample yield of OSVs.

Key words: organic spintronics, organic spin valves, magnetoresistance

中图分类号:  (Organic semiconductors)

  • 81.05.Fb
85.75.-d (Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields) 85.70.Kh (Magnetic thin film devices: magnetic heads (magnetoresistive, inductive, etc.); domain-motion devices, etc.)