65 citations · 199 across the 5 of their papers we have counts for
8 papers
Ca2Y2Cu5O10: the first frustrated quasi-1D ferromagnet close to criticality
R. O. Kuzian, S. Nishimoto, S. -L. Drechsler +9
Ca2Y2Cu5O10 is build up from edge-shared CuO4 plaquettes forming spin chains. From inelastic neutron scattering data we extract an in-chain nearest neighbor exchange J1 approximate…
Comment on "Two-spinon and four-spinon continuum in a frustrated ferromagnetic spin-1/2 chain" by M. Enderle et al
S. -L. Drechsler, S. Nishimoto, R. Kuzian +6
We show that LiVCuO4 should be described by strongly ferromagnetically coupled Heisenberg antiferromagnetic chains (HAC) in sharp contrast with the effective exchange integrals Ji…
Electronic structure and magnetic properties of Li_2ZrCuO_4 - a spin 1/2 Heisenberg system in vicinity to a quantum critical point
M. Schmitt, J. Malek, S. -L. Drechsler +1
Based on density functional calculations, we present a detailed theoretical study of the electronic structure and the magnetic properties of the quasi-one dimensional chain cuprate…
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…
Comment on "Competition between helimagnetism and commensurate quantum spin correlations in LiCu2O2"
S. -L. Drechsler, J. Malek, J. Richter +3
The microscopic origin of the recently observed helical structure in LiCu2O2 [1] is considered. It is shown that the frustrated antiferromagnetic double chain scenario adopted in R…
Incremental expansions for the ground state energy of the two-dimensional Hubbard model
J. Malek, S. Flach, K. Kladko
A generalization of Faddeev's approach of the 3-body problem to the many-body problem leads to the method of increments. This method was recently applied to account for the ground…