Three Dimensional Spin Web: A New Magnetic Lattice in Cu3TeO6
M. Herak, H. Berger, M. Prester, M. Miljak, I. Zivkovic, O. Milat, D. Drobac, S. Popovic, O. Zaharko
Abstract
We report on magnetic properties of cubic compound Cu3TeO6 studied by ac and dc susceptibility and neutron powder diffraction for the first time. A novel magnetic lattice, three dimensional spin web, composed of almost planar regular hexagons of Cu2+, S =1/2 spins, defines the properties of Cu3TeO6. The behavior of the magnetic susceptibility in the paramagnetic state at approximately 170 K is suggestive for a competition between local anisotropies of Cu2+ hexagons. The resulting frustration is weaker than the antiferromagnetic nearest-neighbor interaction which leads to a collinear (or slightly canted) spin arrangement (k=0,0,0) and formation of magnetic domains below TN=61 K.
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