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YAMANE, H; SHIBATA, M; SHIMANE, Y; JUNKE, T; SEINO, Y; ADAMS, S; MINAMI, K; HAYASHI, A; TATSUMISAGO, M
Solid state ionics, 06/2007, Letnik: 178, Številka: 15-18Journal Article
A synchrotron X-ray powder diffraction pattern was measured for a lithium superionic conductor, Li7P3S11, which has a high conductivity of 3.2X10-3Scm-1 at room temperature and a low activation energy of 12kJmol-1 Mizuno et al., Solid State Ionics, vol. 177 (2006) 2721. The crystal structure was solved by a direct space global optimization technique and refined by the Rietveld method. The compound crystallizes in a triclinic cell, space group P-1, a=12.5009(3) A, b=6.03160(17) A, c=12.5303(3) A, alpha=102.845(3) deg , beta=113.2024(18) deg , gamma=74.467(3) deg . PS4 tetrahedra and P2S7 ditetrahedra are contained in the structure and Li ions are situated between them.
