Magnetic properties of the low dimensional spin system (VO)PO:ESR and susceptibility
/ Authors
/ Abstract
Abstract:Experimental results on magnetic resonance (ESR) and magnetic susceptibility are given for single crystalline (VO)2P2O7. The crystal growth procedure is briefly discussed. The susceptibility is interpreted numerically using a model with alternating spin chains. We determine J=51 K and . Furthermore we find a spin gap of meV from our ESR measurements. Using elastic constants no indication of a phase transition forcing the dimerization is seen below 300 K.
Journal: The European Physical Journal B - Condensed Matter and Complex Systems