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Time-Reversal Soliton Pairs In Even Spin-Chern-Number Higher-Order Topological Insulators
Yi-Chun Hung, Baokai Wang, Chen-Hsuan Hsu +2
Solitons formed through the one-dimensional mass-kink mechanism on the edges of two-dimensional systems with non-trivial topology play an important role in the emergence of higher-…
Magnetically tunable Dirac and Weyl fermions in the Zintl materials family
Anan Bari Sarkar, Sougata Mardanya, Shin-Ming Huang +7
Recent classification efforts encompassing crystalline symmetries have revealed rich possibilities for solid-state systems to support a tapestry of exotic topological states. Howev…
High Spin-Chern-Number Insulator in -Antimonene with a Hidden Topological Phase
Baokai Wang, Xiaoting Zhou, Yen-Chuan Lin +2
In investigating the topological electronic structures of monolayer -phase group V elements, we uncover a new topological phase, which is invisible in the symmetry-based topolog…
Room-temperature quantum spin Hall edge state in a higher-order topological insulator BiBr
Nana Shumiya, Md Shafayat Hossain, Jia-Xin Yin +24
Room-temperature realization of macroscopic quantum phenomena is one of the major pursuits in fundamental physics. The quantum spin Hall state, a topological quantum phenomenon tha…
Antisite defect qubits in monolayer transition metal dichalcogenides
Jeng-Yuan Tsai, Jinbo Pan, Hsin Lin +2
Being atomically thin and amenable to external controls, two-dimensional (2D) materials offer a new paradigm for the realization of patterned qubit fabrication and operation at roo…
A Higher-Order Topological Insulator Phase in a Modulated Haldane Model
Baokai Wang, Xiaoting Zhou, Hsin Lin +1
We explore topological properties of a modulated Haldane model (MHM) in which the strength of the nearest-neighbor and next-nearest-neighbor terms is made unequal and the three-fol…