Abstract
Polarized neutron inelastic scattering experiments have been carried out in the quasi-1D Ising-like antiferromagnet TlCoCl 3 . We observed the longitudinal magnetic fluctuation S z z ( Q , ω) for the spin-wave excitation continuum, which has not yet been observed in unpolarized neutron inelastic scattering experiments on the quasi-1D Ising-like antiferromagnets CsCoCl 3 and TlCoCl 3 , together with the transverse magnetic fluctuation S x x ( Q , ω). We compared both the obtained intensities of S x x ( Q , ω) and S z z ( Q , ω) with those calculated using the perturbation theory from the pure Ising limit by Ishimura and Shiba (IS), and a semi quantitative agreement was found.
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