97 citations · 196 across the 9 of their papers we have counts for
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A Gapped Phase in Semimetallic T-WTe Induced by Lithium Intercalation
Mengjing Wang, Aakash Kumar, Hao Dong +6
The Weyl semimetal WTe has shown several correlated electronic behaviors, such as the quantum spin Hall effect, superconductivity, ferroelectricity, and a possible exciton in…
Signatures of Dimensionality and Symmetry in Exciton Bandstructure: Consequences for Time-Evolution
Diana Y. Qiu, Galit Cohen, Dana Novichkova +1
Exciton dynamics, lifetimes and scattering are directly related to the exciton dispersion, or bandstructure. While electron and phonon bandstructures are well understood and can be…
Solving the Bethe-Salpeter Equation on a Subspace: Approximations and Consequences for Low-dimensional Materials
Diana Y. Qiu, Felipe H. da Jornada, Steven G. Louie
It is well known that the ambient environment can dramatically renormalize the quasiparticle gap and exciton binding energies in low-dimensional materials, but the effect of the en…
Comparison of GW band structure to semi-empirical approach for an FeSe monolayer
Diana Y. Qiu, Sinisa Coh, Marvin L. Cohen +1
We present the GW band structure, core levels, and deformation potential of monolayer FeSe in the paramagnetic phase based on a starting mean field of the Kohn Sham density…
Exciton Shift Currents: DC Conduction with Sub-bandgap Photo Excitations
Y. -H. Chan, Diana Y. Qiu, Felipe H. da Jornada +1
Shift current is a DC current generated from nonlinear light-matter interaction in a non-centrosymmetric crystal and is considered a promising candidate for next generation photovo…
Identifying substitutional oxygen as a prolific point defect in monolayer transition metal dichalcogenides with experiment and theory
Sara Barja, Sivan Refaely-Abramson, Bruno Schuler +17
Chalcogen vacancies are considered to be the most abundant point defects in two-dimensional (2D) transition-metal dichalcogenide (TMD) semiconductors, and predicted to result in de…