首页|Valley transport in Kekulé structures of graphene
Valley transport in Kekulé structures of graphene
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Valleytronics is an emergent discipline in condensed matter physics and offers a new way to encode and manipulate information based on the valley degree of freedom in materials.Among the various materials being studied,Kekulé dis-torted graphene has emerged as a promising material for valleytronics applications.Graphene can be artificially distorted to form the Kekulé structures rendering the valley-related interaction.In this work,we review the recent progress of research on Kekulé structures of graphene and focus on the modified electronic bands due to different Kekulé distortions as well as their effects on the transport properties of electrons.We systematically discuss how the valley-related interaction in the Kekulé structures was used to control and affect the valley transport including the valley generation,manipulation,and detection.This article summarizes the current challenges and prospects for further research on Kekulé distorted graphene and its potential applications in valleytronics.
grapheneY-shaped Kekulé(Y-Kek)lattice distortion structureO-Kekulé(O-Kek)structureval-ley current
王娟娟、汪军
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Department of Physics,College of Sciences,Nanjing Agricultural University,Nanjing 210095,China
Department of Physics,Southeast University,Nanjing 210096,China
National Natural Science Foundation of ChinaNational Natural Science Foundation of China