Abstract: | On a Modified Form of the β-CuNdW2O8 Type: γ-CuTbW2O8 Single crystals of γ-CuTbW2O8 were prepared by flux in closed copper tubes. X-ray investigations show triclinic symmetry, space group C-P1 , with a = 6.722, b = 9.831, c = 15.352 Å, α = 72.82, β = 88.53, γ = 71.76°, Z = 6. γ-CuTbW2O8 is closely related to β-CuNdW2O8. One significant difference can be seen in an alternate staggered location of Tb3+ ions along 110]. |