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The spin-1/2 Cu2+ ions in beta-Cu3V2O8 occupy the sites of a Kagome-staircaselattice, an anisotropic variant of the Kagome net: buckled layers and imbeddedplaquettes of three edge-shared CuO4 squares break the ideal Kagome symmetry.Susceptibility and heat capacity measurements show the onset of short-rangeordering at approximately 75 K, and a magnetic phase transition with thecharacteristics of antiferromagnetism at ~29 K. Comparison to the Curie Weisstheta (theta,CW = -135 K) indicates that the geometric frustration is largelyrelieved by the anisotropy. A ferromagnetic contribution to the magnetizationbelow the ordering temperature and negative magnetization in zero-field cooledmeasurements at low fields are attributed to uncompensated spins at grainboundaries or defects.Comment: 9 pages, 5 figure

-Cu3V2O8: magnetic ordering in a spin-1/2 Kagom -staircase lattice

-Cu₃V₂O₈: magnetic ordering in a spin-1/2 Kagom -staircase lattice