Matches in SemOpenAlex for { <https://semopenalex.org/work/W4382024888> ?p ?o ?g. }
- W4382024888 abstract "The wavefront dislocation is an important and ubiquitous phenomenon in wave fields. It is closely related to the phase singularity in a wave function. Some recent studies have verified that the wavefront dislocations in the local density of states map can well manifest the intrinsic topological characteristics in graphene and some topological systems. Different from these previous schemes, we raise a transport method to measure such wavefront dislocations in monolayer and Bernal-stacked bilayer graphene. Combining analytical analysis and numerical calculation, we find phase singularities naturally appear in the transmission coefficients between different sublattices, due to the intervalley interference on the electron propagating paths. These phase singularities could contribute wavefront dislocations in the conductance map. Additionally, in bilayer graphene, the wavefront dislocations are found to remain robust even though the tip is coupled to multiple sublattices. Biased bilayer graphene is also explored. Our scheme provides a transport routine to explore valley-related topological properties of materials." @default.
- W4382024888 created "2023-06-27" @default.
- W4382024888 creator A5044736875 @default.
- W4382024888 creator A5050490275 @default.
- W4382024888 date "2023-06-26" @default.
- W4382024888 modified "2023-09-27" @default.
- W4382024888 title "Wavefront dislocations in graphene systems revealed by transport measurement" @default.
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- W4382024888 doi "https://doi.org/10.1103/physrevb.107.235423" @default.
- W4382024888 hasPublicationYear "2023" @default.
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