3 papers
cond-mat.mes-hall2025
Quantum oscillations between excitonic and quantum spin Hall insulators in moiré WSe2
Zhongdong Han, Yiyu Xia, Kenji Watanabe +3
Quantum spin Hall insulators (QSHIs) and excitonic insulators (EIs) are prototypical topological and correlated states of matter, respectively. The topological phase transition bet…
cond-mat.supr-con2025
Simulating high-temperature superconductivity in moiré WSe2
Yiyu Xia, Zhongdong Han, Jiacheng Zhu +6
The emergence of high transition temperature (Tc) superconductivity in strongly correlated materials remains a major unsolved problem in physics. High-Tc materials, such as cuprate…
cond-mat.str-el2024
Correlated states controlled by tunable van Hove singularity in moiré WSe2
Patrick Knüppel, Jiacheng Zhu, Yiyu Xia +7
Twisted bilayers of transition metal dichalcogenide semiconductors have enabled the discovery of superconductivity, ferromagnetism, correlated insulators and a series of new topolo…