4 papers
Strain-Induced Boundary States and Phase Transitions in Graphene Flakes
Yongsheng Liang, Shiqi Xia, Daohong Song +2
Strain has been extensively employed to tailor graphene's properties and has emerged as a powerful tool for engineering gauge fields and exploring fundamental phenomena in artifici…
Observation of doubly-degenerate topological flatbands of edge states in strained graphene
Yongsheng Liang, Jingyan Zhan, Shiqi Xia +2
Flat bands are of significant interest due to their potential for energy confinement and their ability to enable strongly correlated physics. Incorporating topology into flatband s…
Observation of Topological Armchair Edge States in Photonic Biphenylene Network
Qi Zhong, Yongsheng Liang, Shiqi Xia +2
Edge states in 2D materials are vital for advancements in spintronics, quantum computing, and logic transistors. For graphene nanoribbons, it is well known that the zigzag edges ca…
Bulk-hole correspondence and inner robust boundary modes in singular flatband lattices
Limin Song, Shenyi Gao, Shiqi Xia +5
Topological entities based on bulk-boundary correspondence are ubiquitous, from conventional to higher-order topological insulators, where the protected states are typically locali…