Zigzag C 2 N nanoribbons with edge modifications as multi-functional spin devices

Recently, a holey two-dimensional (2D) C N crystal with a wide band gap has been successfully synthesized. However, its non-magnetic property largely limits real applications in spintronics. Here we find that edge magnetism can be introduced by tailoring the holey 2D C N crystal into nanoribbons wit...

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Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2017-05, Vol.19 (19), p.12538-12545
Main Authors: Yang, X F, Kuang, Y W, Yu, H L, Shao, Z G, Zhang, J, Feng, J F, Chen, X S, Liu, Y S
Format: Article
Language:English
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Summary:Recently, a holey two-dimensional (2D) C N crystal with a wide band gap has been successfully synthesized. However, its non-magnetic property largely limits real applications in spintronics. Here we find that edge magnetism can be introduced by tailoring the holey 2D C N crystal into nanoribbons with zigzag edges. When edge N atoms are bare or passivated by H atoms, the device can be used to design high-performance thermospin devices and thermal rectifiers. This is ascribed to the emergence of a spin semiconducting property with a wide band gap. Moreover, if the edge N atoms are passivated by O atoms, the device shows a half-metallic property; meanwhile an obvious spin Seebeck effect can also be observed when a temperature difference is applied across the device.
ISSN:1463-9076
1463-9084
DOI:10.1039/C6CP08148G