单根Co(81)Cu(19)/Cu多层纳米线电学性质的原位测量  

Electrical behavior of individual Co81 Cu19/Cu magnetic nanostructures measured via in-situ SEM

作　　者：张军伟 马鸿斌 全香凝 曾雪 胡玥 关超帅 邓霞 李华[1] 张铭杰 彭勇 ZHANG Jun-wei;MA Hong-bin;QUAN Xiang-ning;ZENG Xue;HU Yue;GUAN Chao-shuai;DENG Xia;LI Hua;ZHANG Ming-jie;PENG Yong(School of Physical Science and Technology and Electron Microscopy Centre of Lanzhou University,Lanzhou University,Lanzhou Ganasu 730000;Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and Forming,Qinghai University,Xining Qinghai 810000;School of Mathematics and Physics,Lanzhou Jiaotong University,Lanzhou Gansu 730070;School of Life Science,Lanzhou University,Lanzhou Gansu 730000;School of Earth Sciences,Lanzhou University,Lanzhou Gansu 730000,China)

机构地区：[1]兰州大学物理科学与技术学院,电镜中心,甘肃兰州730000 [2]青海大学高性能轻金属合金与成形工程研究中心,青海西宁810000 [3]兰州交通大学数理学院,甘肃兰州730070 [4]兰州大学生命科学学院,甘肃兰州730000 [5]兰州大学地质科学与矿产资源学院,甘肃兰州730000

出　　处：《电子显微学报》2020年第5期558-566,共9页Journal of Chinese Electron Microscopy Society

基　　金：国家自然科学基金资助项目(Nos.51571104,51801087,91962212);兰州大学中央高校基本科研业务费专项资金自由探索项目(No.lzujbky-2020-58);兰州大学大型仪器设备开放共享专项经费支持。

摘　　要：磁电阻效应是衡量磁结构单体性能的最重要指标。随着对磁电阻效应的不断研究和应用,不仅诞生了与电子自旋相关的自旋电子学理论,同时也促进了电子学器件的快速发展,这不仅为基础物理的理论研究提供了实验根基,也将促进今后大规模高科技产业的形成。随着半导体加工工艺技术的不断提高,电子学器件的基本结构单元已经达到了纳米量级,这将引起一些纳米范畴的特性对其宏观性能的调控和影响。基于此,全面掌握纳米磁结构单体基本的物理特性是非常必要的,对其全面了解和精确测量能够进一步推动自旋电子学器件的应用和发展。本文应用电化学沉积法制备了CoCu/Cu多层纳米线,且在电镜下对单根CoCu/Cu多层纳米线的磁电特性进行了原位测试。通过对多层纳米线电特性的测量,不仅获得了多层纳米线的基本物理参数,还得到了直观、清晰的物理图像,这为磁结构单体今后的发展和应用提供了可靠的理论基础和实际指导。Magnetoresistance effect is the most important indicator to evaluate the performance of the individual magnetic nanostructures.Based on this effect,the theory of spin electronics has formed,and various electronic devices have been manufactured.With the improvement of semiconductor processing technology,the individual magnetic nanostructures of electronic devices have reached the nanoscale,which changed the properties of electronic devices.Therefore,It is necessary to comprehensively understand and accurately measure the physics properties of individual magnetic nanostructures for the development of spintronics devices.In this work,we prepared bamboo-like CoCu/Cu multilayer nanowires in anodic aluminum oxide templates using an electrodeposition method.Meanwhile,the electrical properties of individual CoCu/CuCo MNW were measured via in situ SEM equipped with magneto-transport instrument.We not only got the basic physical parameters of multilayer nanowires,but also acquired a clear physical image.The work provides a reliable theoretical foundation for the development of individual magnetic nanostructures.

关 键 词：纳米磁结构单体 电镜原位 磁输运测量仪 CoCu/Cu磁性多层纳米线 电学特性 

分 类 号：TB383[一般工业技术—材料科学与工程] TG115.215.3[金属学及工艺—物理冶金]