Magnetic excitation in a new spin gap compound Cu2Sc2Ge4O13: Comparison to Cu2Fe2Ge4O13
T. Masuda, G. J. Redhammer
Abstract
The compound is presented as a new member of the family of weakly coupled spin chain and dimer compounds . Magnetic susceptibility, heat capacity, and neutron inelastic scattering measurements reveal that the compound has the same spin dimer component as . The observed narrow band excitation in bulk measurements is consistent with spin gap behavior. The energy scale of the weakly coupled dimers in the Sc compound is perfectly coincident with that in the Fe compound.
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