Ab initio study of exciton insulator phase: Emergent $\text{p}$-wave spin textures from spontaneous excitonic condensation

Fang Zhang, Jiawei Ruan, Gurjyot Sethi +2

An excitonic insulator${}^{1,2}$ (EI) is a correlated many-body state of electron-hole pairs, potentially leading to high-temperature condensate and superfluidity${}^{3-7}$. Despite ev…