中国物理B ›› 2017, Vol. 26 ›› Issue (9): 98509-098509.doi: 10.1088/1674-1056/26/9/098509

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Spin-dependent transport characteristics of nanostructures based on armchair arsenene nanoribbons

Kai-Wei Yang(杨开巍), Ming-Jun Li(李明君), Xiao-Jiao Zhang(张小姣), Xin-Mei Li(李新梅), Yong-Li Gao(高永立), Meng-Qiu Long(龙孟秋)   

  1. 1 Hunan Key laboratory of Super Micro-structure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, China;
    2 Physical Science and Technology College of Yichun University, Yichun 336000, China;
    3 Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, USA
  • 收稿日期:2017-03-20 修回日期:2017-06-06 出版日期:2017-09-05 发布日期:2017-09-05
  • 通讯作者: Ming-Jun Li, Meng-Qiu Long E-mail:limingjun@csu.edu.cn;mqlong@csu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 21673296 and 11334014), the Science and Technology Plan of Hunan Province, China (Grant No. 2015RS4002), and the Postdoctoral Science Foundation of Central South University, China.

Spin-dependent transport characteristics of nanostructures based on armchair arsenene nanoribbons

Kai-Wei Yang(杨开巍)1, Ming-Jun Li(李明君)1, Xiao-Jiao Zhang(张小姣)2, Xin-Mei Li(李新梅)1, Yong-Li Gao(高永立)1,3, Meng-Qiu Long(龙孟秋)1   

  1. 1 Hunan Key laboratory of Super Micro-structure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, China;
    2 Physical Science and Technology College of Yichun University, Yichun 336000, China;
    3 Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627, USA
  • Received:2017-03-20 Revised:2017-06-06 Online:2017-09-05 Published:2017-09-05
  • Contact: Ming-Jun Li, Meng-Qiu Long E-mail:limingjun@csu.edu.cn;mqlong@csu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 21673296 and 11334014), the Science and Technology Plan of Hunan Province, China (Grant No. 2015RS4002), and the Postdoctoral Science Foundation of Central South University, China.

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摘要： By employing non-equilibrium Green's function combined with the spin-polarized density-functional theory, we investigate the spin-dependent electronic transport properties of armchair arsenene nanoribbons (aAsNRs). Our results show that the spin-metal and spin-semiconductor properties can be observed in aAsNRs with different widths. We also find that there is nearly 100% bipolar spin-filtering behavior in the aAsNR-based device with antiparallel spin configuration. Moreover, rectifying behavior and giant magnetoresistance are found in the device. The corresponding physical analyses have been given.

关键词: armchair arsenene nanoribbons, spin-dependent electronic transport property, spin-polarized density-functional theory, bipolar spin-filtering behavior

Abstract: By employing non-equilibrium Green's function combined with the spin-polarized density-functional theory, we investigate the spin-dependent electronic transport properties of armchair arsenene nanoribbons (aAsNRs). Our results show that the spin-metal and spin-semiconductor properties can be observed in aAsNRs with different widths. We also find that there is nearly 100% bipolar spin-filtering behavior in the aAsNR-based device with antiparallel spin configuration. Moreover, rectifying behavior and giant magnetoresistance are found in the device. The corresponding physical analyses have been given.

Key words: armchair arsenene nanoribbons, spin-dependent electronic transport property, spin-polarized density-functional theory, bipolar spin-filtering behavior

中图分类号:  (Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)

  • 85.75.-d
73.63.-b (Electronic transport in nanoscale materials and structures)