Antiferromagnetic Heisenberg S=5/2 spin chain compound SrMn2V2O8

Large single crystals of the new compound SrMn2V2O8 have been grown by the floating-zone method. This transition-metal based oxide is isostructural to SrNi2V2O8, described by the tetragonal space group I41cd. Magnetic properties were investigated by means of susceptibility, magnetization, and specific-heat measurements. The compound behaves like a 1D magnetic system above the ordering temperature (TN=43 K). The magnetic ground state can be described as a classical long-range ordered antiferromagnet with weak anisotropy. - Highlights: → New magnetic compound. → Single crystal growth by floating-zone method. → Single crystal structure determination by X-ray diffraction. → Low dimensional magnetism by magnetic susceptibility. → Field dependance on the specific heat.