Recent advances of defect-induced spin and valley polarized states in graphene

Yu Zhang, Liangguang Jia, Yaoyao Chen, Lin He, Yeliang Wang

科研成果: 期刊稿件文献综述同行评审

4 引用 (Scopus)

摘要

Electrons in graphene have fourfold spin and valley degeneracies owing to the unique bipartite honeycomb lattice and an extremely weak spin-orbit coupling, which can support a series of broken symmetry states. Atomic-scale defects in graphene are expected to lift these degenerate degrees of freedom at the nanoscale, and hence, lead to rich quantum states, highlighting promising directions for spintronics and valleytronics. In this article, we mainly review the recent scanning tunneling microscopy (STM) advances on the spin and/or valley polarized states induced by an individual atomic-scale defect in graphene, including a single-carbon vacancy, a nitrogen-atom dopant, and a hydrogen-atom chemisorption. Lastly, we give a perspective in this field.

源语言英语
文章编号087301
期刊Chinese Physics B
31
8
DOI
出版状态已出版 - 1 8月 2022

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