64 citations · 251 across the 13 of their papers we have counts for
9 papers · 1 filter
Comment on `Oxygen vacancy-induced magnetic moment in edge-sharing CuO chains of LiCuO'
R. O. Kuzian, R. Klingeler, W. E. A. Lorenz +23
In a recent work devoted to the magnetism of LiCuO, Shu et al. [New J. Phys. 19 (2017) 023026] have proposed a "simplified" unfrustrated microscopic model that differs…
Electron-lattice interactions strongly renormalize the charge transfer energy in the spin-chain cuprate LiCuO
Steve Johnston, Claude Monney, Valentina Bisogni +9
Strongly correlated insulators are broadly divided into two classes: Mott-Hubbard insulators, where the insulating gap is driven by the Coulomb repulsion on the transition-meta…
Determining the Short-Range Spin Correlations in Cuprate Chain Materials with Resonant Inelastic X-ray Scattering
Claude Monney, Valentina Bisogni, Ke Jin Zhou +13
We report a high-resolution resonant inelastic soft x-ray scattering study of the quantum magnetic spin-chain materials Li2CuO2 and CuGeO3. By tuning the incoming photon energy to…
The strength of frustration and quantum fluctuations in LiVCuO4
Satoshi Nishimoto, Stefan-Ludwig Drechsler, Roman Kuzian +5
For the 1D-frustrated ferromagnetic J_1-J_2 model with interchain coupling added, we analyze the dynamical and static structure factor S(k,omega), the pitch angle phi of the magnet…
Temperature dependent optical conductivity of undoped cuprates with weak exchange
J. Malek, S. -L. Drechsler, U. Nitzsche +2
The optical conductivity sigma(omega) is calculated at finite temperature T for CuO_2 chain clusters within a pd-Hubbard model. Data at T = 300 K for Li_2CuO_2 are reanalyzed withi…
The route of frustrated cuprates from antiferromagnetic to ferromagnetic spin-1/2 Heisenberg chains: Li2ZrCuO4 as a missing link near the quantum critical point
S. -L. Drechsler, O. Volkova, A. N. Vasiliev +8
From thermodynamics, LSDA+U calculations and exact diagonalization studies of a five-band Hubbard (Cu 3d, O 2p) model on CuO2 stripes we found that Li2ZrCuO4 (Li2CuZrO4 in traditio…