Magnetic property, Raman spectroscopy and crystal field analysis of Sm3+in Sm(BrO3)3⋅9H2O

Single crystals of Sm(BrO3)(3)center dot 9H(2)O (SmBR) were grown and the principal molar susceptibility perpendicular to c-axis (chi perpendicular to) was measured from 300 K down to 14 K and chi vertical bar vertical bar, the parallel susceptibility, anisotropy was measured in the temperature range of 300-120 K. A cross-over between chi vertical bar vertical bar, and chi perpendicular to was observed at similar to 120 K i.e., below this temperature chi vertical bar vertical bar < chi perpendicular to. Raman spectra of SmBR were recorded in the wave number range of 10-4000 cm(-1) and crystal field (CF) Stark energies were extracted from the spectra. A good theoretical simulation of the observed magnetic susceptibilities and observed CF Stark energies of Sm3+ in SmBR was achieved using the one electron crystal field (CF) interaction with D-3h site symmetry. The electronic specific heat along with the quadruple splitting and hyperfine heat capacity were calculated by using the results of CF analysis.