144 citations · 1k across the 37 of their papers we have counts for
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Chiral topological excitonic insulator in semiconductor quantum wells
Ningning Hao, Ping Zhang, Jian Li +3
We present a scheme to realize the chiral topological excitonic insulator in semiconductor heterostructures which can be experimentally fabricated with a coupled quantum well adjac…
Topological phases and fractional excitations of the exciton condensate in a special class of bilayer systems
Ningning Hao, Ping Zhang, Yupeng Wang
We study the exciton condensate in zero temperature limit in a special class of electron-hole bilayer systems adjacent to insulating ferromagnetic films. With the self-consistent m…
Impurity effects and ferromagnetism in excitonic insulators
Jian Li, Ning Hao, Yupeng Wang
Both nonmagnetic and magnetic impurity effects in spin singlet and triplet excitonic insulators were investigated. The bound state energies caused by single impurity were given. Th…
Exciton condensation and fractional charge in a bilayer two-dimension electron gas adjacent to a superconductor film
Ningning Hao, Ping Zhang, Jian Li +2
We study the exciton condensate (EC) in a bilayer two-dimension-electron-gas (2DEG) adjacent to a type-II superconductor thin film with an array of pinned vortex lattices. By apply…