Interchain interactions and magnetic properties of Li2CuO2

Abstract

An effective Hamiltonian is constructed for an insulating cuprate with edge-sharing chains Li2CuO2.The Hamiltonian contains the nearest and next-nearest neighboring intrachain and zigzag-type interchain interactions.The values of the interactions are obtained from the analysis of the magnetic susceptibility, and this system is found to be described as coupled frustrated chains.We calculate the dynamical spin correlation function S(q,ω) by using the exact diagonalization method, and show that the spectra of S(q,ω) are characterized by the zigzag-type interchain interactions. The results of the recent inelastic neutron scattering experiment are discussed in the light of the calculated spectra.

4 pages, 3 figures, RevTeX

References in corpus (4)

• Electronic States and Magnetic Propertis of Edge-sharing Cu-O Chains
• Spin Dynamics in the Magnetic Chains Arrays of Sr14Cu24O41: a Neutron Inelastic scattering Investigation
• Quasi-two-dimensional hole ordering and dimerized state in the CuO2-chain layers in Sr14Cu24O41
• Extended Moment Formation and Second Neighbor Coupling in Li${}_2$CuO${}_2$

Cited by in corpus (11)

• The magnetic structure of Li2CuO2: from ab initio calculations to macroscopic simulations
• On the absence of a spiral magnetic order in Li2CuO2 with one-dimensional CuO2 ribbon chains
• Highly Dispersive Spin Excitations in the Chain Cuprate Li2CuO2
• Thermodynamic Properties of the Anisotropic Frustrated Spin-chain Compound Linarite PbCuSO${}_4$(OH)${}_2$
• Charge and orbital excitations in Li2CuO2
• The dynamics of a hole in a CuO_4 plaquette: electron energy-loss spectroscopy of Li_2CuO_2
• Multi-magnon bound states in easy-axis ferromagnetic zigzag spin chain
• Probing inter- and intrachain Zhang-Rice excitons in Li${}_2$CuO${}_2$ and determining their binding energy
• Quenched charge disorder in CuO2 spin chains: Experimental and numerical studies
• Effects of hole-doping on the magnetic ground state and excitations in the edge-sharing CuO${}_2$ chains of Ca${}_{2+x}$Y${}_{2-x}$Cu${}_5$O${}_{10}$
• Comment on `Oxygen vacancy-induced magnetic moment in edge-sharing CuO${}_2$ chains of Li${}_2$CuO${}_2$'