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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…
Topological theory of inversion-breaking charge-density-wave monolayer 1\textit{T}-TiSe
Ming-Chien Hsu, Bahadur Singh, Chuang-Han Hsu +3
A charge density wave (CDW) of a nonzero ordering vector couple electronic states at and statically, giving rise to a reduced Bril…
Layer Hall effect in a 2D topological Axion antiferromagnet
Anyuan Gao, Yu-Fei Liu, Chaowei Hu +33
While ferromagnets have been known and exploited for millennia, antiferromagnets (AFMs) were only discovered in the 1930s. The elusive nature indicates AFMs' unique properties: At…
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…
Strain-Induced Charge Density Waves with Emergent Topological States in Monolayer NbSe2
Wei-Chi Chiu, Sougata Mardanya, Robert Markiewicz +7
Emergence of topological states in strongly correlated systems, particularly two-dimensional (2D) transition-metal dichalcogenides, offers a platform for manipulating electronic pr…