197 citations · 939 across the 30 of their papers we have counts for
3 papers · 1 filter
The many faces of quantum kagome materials: Interplay of further-neighbour exchange and Dzyaloshinskii-Moriya interaction
Tsezar F. Seman, Cheng-Chien Chen, Rajiv R. P. Singh +1
The field of frustrated magnetism has been enriched significantly by the discovery of various kagome lattice compounds. These materials exhibit a great variety of macroscopic behav…
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…
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…