Static and Dynamic Magnetic Response of Fragmented Haldane-like Spin Chains in Layered Li3Cu2SbO6

Abstract

The structure and the magnetic properties of layered Li3Cu2SbO6 are investigated by powder X-ray diffraction, static susceptibility, and electron spin resonance studies up to 330 GHz. The XRD data experimentally verify the space group C2/m with halved unit cell volume in contrast to previously reported C2/c. In addition, the data show significant Li/Cu-intersite exchange. Static magnetic susceptibility and ESR measurements show two magnetic contributions, i.e. quasi-free spins at low-temperature and a spin-gapped magnetic subsystem, with about half of the spins being associated to each subsystem. The data suggest ferromagnetic-antiferromagnetic alternating chains with JFM = -285 K and JAFM = 160 K with a significant amount of Li-defects in the chains. The results are discussed in the scenario of fragmented 1D S = 1 AFM chains with a rather high defect concentration of about 17% and associated S = 1/2 edge states of the resulting finite Haldane chains.

References in corpus (17)

• An investigation of the quantum $J_1-J_2-J_3$ model on the honeycomb lattice
• Local Enhancement of Antiferromagnetic Correlations by Nonmagnetic Impurities
• Magnon Heat Transport in doped $\mathrm{L}{\mathrm{a}}_2\mathrm{Cu}{\mathrm{O}}_4$
• Magnetic properties of the S=1/2 quasi-one-dimensional antiferromagnet CaCu2O3
• Highly Dispersive Spin Excitations in the Chain Cuprate Li2CuO2
• Microscopic magnetic modeling for the $S$=1/2 alternating chain compounds Na${}_3$Cu${}_2$SbO${}_6$ and Na${}_2$Cu${}_2$TeO${}_6$
• Anisotropic superexchange of a 90 degree Cu-O-Cu bond
• Magnetic Excitations of Spin-Gap System Na3Cu2SbO6 with Distorted Honeycomb Structure
• Revisiting the chain magnetism in Sr14Cu24O41: Experimental and numerical results
• Finite size effects and magnetic order in the spin-1/2 honeycomb lattice compound InCu{2/3}V{1/3}O{3}
• Local probe of fractional edge states of S=1 Heisenberg spin chains
• Anomalous Spin Dynamics observed by High Frequency ESR in Honeycomb Lattice Antiferromagnet InCu2/3V1/3O3
• Frustration of the interlayer coupling by mobile holes in La2-xSrxCuO4 (x<0.02)
• Quenched charge disorder in CuO2 spin chains: Experimental and numerical studies
• Magnetisation of hole-doped CuO2 spin chains in Sr14-xCaxCu24O41
• High temperature ferromagnetism of Li-doped vanadium oxide nanotubes
• High-field ESR studies of the quantum spin magnet CaCu2O3

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