59 citations · 199 across the 11 of their papers we have counts for
11 papers
Confined and deconfined spinon excitations in the rectangular-lattice quantum antiferromagnet
N. E. Shaik, E. Fogh, B. Dalla Piazza +3
Fractionalization remains one of the most fascinating manifestations of strong interactions in quantum many-body systems. In quantum magnetism, the existence of spinons -- collecti…
Magnon interactions in a moderately correlated Mott insulator
Qisi Wang, S. Mustafi, E. Fogh +20
Quantum fluctuations in low-dimensional systems and near quantum phase transitions have significant influences on material properties. Yet, it is difficult to experimentally gauge…
Staggered-flux state for rectangular-lattice spin 1/2 Heisenberg antiferromagnet
N. E. Shaik, B. Dalla Piazza, D. A. Ivanov +1
We investigate the spin-1/2 Heisenberg model on a rectangular lattice, using the Gutzwiller projected variational wave function known as the staggered flux state. Using Monte Carlo…
Exact diagonalization study of the Hubbard-parametrized four-spin ring exchange model on a square lattice
C. B. Larsen, A. T. Rømer, S. Janas +5
We have used exact numerical diagonalization to study the excitation spectrum and the dynamic spin correlations in the next-next-nearest neighbor Heisenberg antiferromagnet…
Strain-Engineering Mott-Insulating LaCuO
O. Ivashko, M. Horio, W. Wan +15
The transition temperature of unconventional superconductivity is often tunable. For a monolayer of FeSe, for example, the sweet spot is uniquely bound to titanium-o…
Electronic and magnetic excitations in the "half-stuffed" Cu--O planes of BaCuOCl measured by resonant inelastic x-ray scattering
S. Fatale, C. G. Fatuzzo, P. Babkevich +11
We use resonant inelastic x-ray scattering (RIXS) at the Cu L edge to measure the charge and spin excitations in the "half-stuffed" Cu--O planes of the cuprate antiferromagnet…