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1篇 您的检索式:作者名="Chingwu Chu"
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1Flexible atomic buckling and homogeneous edge states in few-layer Bi(110)films显示文摘The structure and edge states of two-dimensional few-layer Bi(110)films grown on a graphene/SiC substrate were studied by low-temperature scanning tunneling microscopy and spectroscopy.We found that the local density of states of few-layer Bi(110)films are layer-dependent and that the films transition from exhibiting semiconducting characteristics to metallic ones as the number of layers increases.The in-plane lattice structure has numerous displacements and inversions,which implies that the atomic arrangement and atomic buckling in ultrathin Bi(110)films are flexible.The edges formed between 4-monolayer Bi(110)and graphene are reconstructed and distorted,and the corresponding edge states are topographically dependent.Steps from the substrate and domain boundaries also modify the electronic structures and induce additional defect-dependent states.We also found that the zigzag-shaped step edges in few-layer Bi(110)films are nonreconstructed and possess layer-dependent homogeneous edge states,providing a very likely platform for further research on quantum interference of the edge mode in order to confirm the topology in Bi(110).Yanfeng Lyu Samira Daneshmandi Shuyuan Huyan Chingwu Chu 2022Nano Research2022,15,3:0
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