papers
Publications (3)
cond-mat.str-el2018
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…
cond-mat.str-el2009
Highly Dispersive Spin Excitations in the Chain Cuprate Li2CuO2
W. E. A. Lorenz, R. O. Kuzian, S. -L. Drechsler +11
We present an inelastic neutron scattering investigation of Li2CuO2 detecting the long sought quasi-1D magnetic excitations with a large dispersion along the CuO2-chains studied up…
cond-mat.str-el2008
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…