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Neutron scattering from a coordination polymer quantum paramagnet

Hong, T.; Kenzelmann, M.; Turnbull, M. M.; Landee, C. P.; Lewis, B.D.; Schmidt, K. P.; Uhrig, G. S.; Broholm, C.; Reich, D. (American Physical Society, 2006-09-01)

Inelastic neutron scattering measurements are reported for a powder sample of the spin-1/2 quantum paramagnet Cu(quinoxaline)Br2. Magnetic neutron scattering is identified above an energy gap of 1.9 meV. Analysis of the ...