4 papers
Kohn--Luttinger Superconductivity in Flat Chern Bands
Nianlong Zou, Cheng Xu, Yafis Barlas +1
Recent observations of superconductivity near correlated topological phases in flat bands suggest a facile link between flat-band geometry and electron pairing. In this work, we re…
Finite-momentum superconductivity from chiral bands in twisted MoTe
Yinqi Chen, Cheng Xu, Yang Zhang +1
A recent experiment has reported unconventional superconductivity in twisted bilayer MoTe, emerging from a normal state that exhibits a finite anomalous Hall effect -- a signat…
Chiral superconductivity from spin polarized Chern band in twisted MoTe
Cheng Xu, Nianlong Zou, Nikolai Peshcherenko +4
Superconductivity has been observed in twisted MoTe2 within the anomalous Hall metal parent state. Key signatures-including a fully spin/valley polarized normal state, anomalous Ha…
Insulating charge transfer ferromagnetism
Yixin Zhang, Yang Zhang
We propose a mechanism for insulating ferromagnetism in the honeycomb Hubbard model of semiconductor moiré superlattices. The ferromagnetism emerges at critical charge transfer re…