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cond-mat.str-el2003★ 63 cited
Longitudinal magnon in the tetrahedral spin system Cu2Te2O5Br2 near quantum criticality
C. Gros, P. Lemmens, M. Vojta +8
We present a comprehensive study of the coupled tetrahedra-compound Cu2Te2O5Br2 by theory and experiments in external magnetic fields. We report the observation of a longitudinal m…
cond-mat.str-el2003
Crystal Structure and Magnetic Properties of a new two-dimensional S=1 quantum spin system Ni_5(TeO_3)_4X_2 (X= Cl, Br)
M. Johnsson, K. W. Toernroos, P. Lemmens +1
Two new transition-metal tellurium oxy-chlorides of the general formula Ni_5(TeO_3)_4X_2 (X=Cl, Br) have been isolated during the investigation of the ternary phase diagram NiO-NiC…