Bipolar and unipolar valley filter effects in graphene-based P/N junction

We use the spin and valley degrees of freedom to design the bipolar and unipolar valley filter effects based on the graphene-based P/N junction. When the modified Haldane model and staggered potential are applied on the region P, while the off-resonant circularly polarized light and staggered ferrom...

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Bibliographic Details

Published in:	New Journal of Physics
Main Authors:	Xiao-Long Lü, Hang Xie
Format:	Article
Language:	English
Published:	IOP Publishing 2020-01-01
Subjects:	topological insulators valleytronics spintronics 2D materials
Online Access:	https://doi.org/10.1088/1367-2630/ab950d