Journal
PHYSICAL REVIEW B
Volume 80, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.132404
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Funding
- DOE BES Division of Scientific User Facilities
- National Science Foundation [DMR-9986442, DMR-0086210, DMR-0454672]
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A metal-organic compound 2Dioxane center dot 2H(2)O center dot CuCl2 has been synthesized and structurally characterized by x-ray crystallography. Magnetic susceptibility and zero-field inelastic neutron scattering have also been used to study its magnetic properties. It turns out that this material is a weakly coupled one-dimensional S=1/2 Heisenberg antiferromagnetic chain system with chain direction along the crystallographic c axis and the nearest-neighbor intrachain exchange constant J=0.85(4) meV. The next-nearest-neighbor interchain exchange constant J' is also estimated to be 0.05 meV. The observed magnetic excitation spectrum from inelastic neutron scattering is in excellent agreement with numerical calculations based on the Muller ansatz.
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