Chin. Phys. Lett.  2018, Vol. 35 Issue (7): 077501    DOI: 10.1088/0256-307X/35/7/077501
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Magnetoresistance Detection of Vortex Domain in a Notched FeNi Nanowire
Guang-Tian Hai1, Wen-Xiu Zhao1, Jia-Shu Chen1, Zheng-Hua Li1**, Jia-Liang He2**
1School of Physics and Materials Engineering, Dalian Minzu University, Dalian 116600
2College of Information and Communication Engineering, Dalian Minzu University, Dalian 116600
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Guang-Tian Hai, Wen-Xiu Zhao, Jia-Shu Chen et al  2018 Chin. Phys. Lett. 35 077501
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Abstract Revealing the physical nature of vortex wall (VW) behavior in magnetic nanostructures has been of great importance for future device concepts. Here we introduce the superior properties of VW in a notched FeNi nanowire under the action of an electronic current. The pinning-dependent VW propagation is demonstrated by a successive in-field magnetic force microscopy, an anisotropic magnetoresistance measurement, as well as micromagnetics. Based on the developed method, the propagation of VW can be effectively captured by monitoring the change of magnetoresistance in the FeNi nanowire, which sheds light on the development of future spin-based devices.
Received: 09 April 2018      Published: 24 June 2018
PACS:  75.50.Ss (Magnetic recording materials)  
  75.78.Cd (Micromagnetic simulations ?)  
Fund: Supported by the National Natural Science Foundation of China under Grant No 61771092, the Natural Science Foundation of Liaoning Province under Grant No 2015020072, the Fundamental Research Funds for the Central Universities, the Technology Foundation for Selected Overseas Chinese, and the Fundamental Research Funds for the Central Universities (No wd01153).
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https://cpl.iphy.ac.cn/10.1088/0256-307X/35/7/077501       OR      https://cpl.iphy.ac.cn/Y2018/V35/I7/077501
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Guang-Tian Hai
Wen-Xiu Zhao
Jia-Shu Chen
Zheng-Hua Li
Jia-Liang He
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