45 citations · 104 across the 9 of their papers we have counts for
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Origin of Strong Dispersion in Hubbard Insulators
Yao Wang, Krzysztof Wohlfeld, Brian Moritz +5
Using cluster perturbation theory, we explain the origin of the strongly dispersive feature found at high binding energy in the spectral function of the Hubbard model. By comparing…
Evolution of Electronic Structure Across the Rare-Earth RNiO Series
John W. Freeland, Michel van Veenendaal, Jak Chakhalian
The perovksite rare-earth nickelates, RNiO (R=La ... Lu), are a class of materials displaying a rich phase-diagram of metallic and insulating phases associated with charge and…
Spin chain in magnetic field: limitations of the large-N mean-field theory
Krzysztof Wohlfeld, Cheng-Chien Chen, Michel van Veenendaal +1
Motivated by the recent success in describing the spin and orbital spectrum of a spin-orbital chain using a large-N mean-field approximation [Phys. Rev. B 91, 165102 (2015)], we ap…