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Lithium sodium sulphate LiNaSO_4 is a binary-cation sulphate with a hexagonal structure at room temperature.The room-temperature symmetry of LiNaSO_4 belongs to space group P31C (C_(3v)~4) with six molecules per unit cell. Lithium potassium sulphate LiKSO_4 is also a binary-cation sulphate with the same Li ions as the cations However. there are great differences between the high-temperature behaviors of these two materials.The measurements of X-ray diffraction by Li and Raman spectroscopy by Zhang et al. have found that there are an incommensurate and superlattice phases in the high
Lithium sodium sulphate LiNaSO 4 is a binary-cation sulphate with a hexagonal structure at room temperature. The room-temperature symmetry of LiNaSO 4 belongs to space group P31C (C_ (3v) ~ 4) with six molecules per unit cell. Lithium potassium sulphate LiKSO_4 is there are great differences between the high-temperature behaviors of these two materials. The measurements of X-ray diffraction by Li and Raman spectroscopy by Zhang et al. have found that there are an incommensurate and superlattice phases in the high