Magnetic Excitations in the Quasi-1D Ising-like Antiferromagnet TlCoCl3
A. Oosawa, Y. Nishiwaki, T. Kato, K. Kakurai
Abstract
Neutron inelastic scattering measurements have been performed in order to investigate the magnetic excitations in the quasi-1D Ising-like antiferromagnet TlCoCl3. We observed the magnetic excitation, which corresponds to the spin-wave excitation continuum corresponding to the domain-wall pair excitation in the 1D Ising-like antiferromagnet. According to the Ishimura-Shiba theory, we analyzed the observed spin-wave excitation, and the exchange constant 2J and the anistropy ε were estimated as 14.7 meV and 0.14 in TlCoCl3, respectively.
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