Author/Authors :
Robben, Lars Chemische Kristallographie fester Stoffe - Institut für Anorganische Chemie und Kristallographie, FB02, Leobener Strasse/NW2 - and MAPEX Center for Materials and Processes - Universität Bremen, Germany , Merzlyakova, Elena Institut für Physikalische Chemie und Elektrochemie - Leibniz Universität Hannover, Germany , Heitjans, Paul Institut für Physikalische Chemie und Elektrochemie - Leibniz Universität Hannover, Germany , Gesinga, Thorsten M. Chemische Kristallographie fester Stoffe - Institut für Anorganische Chemie und Kristallographie, FB02, Leobener Strasse/NW2 - and MAPEX Center for Materials and Processes - Universität Bremen, Germany
Abstract :
Single-crystal structure refinements on lithium lanthanum zirconate (LLZO;
Li7La3Zr2O12) substituted with gallium were successfully carried out in the cubic
symmetry space group I43d. Gallium was found on two lithium sites as well as on
the lanthanum position. Due to the structural distortion of the resulting
Li6.43(2)Ga0.52(3)La2.67(4)Zr2O12 (Ga–LLZO) single crystals, a reduction of the
LLZO cubic garnet symmetry from Ia3d to I43d was necessary, which could
hardly be analysed from X-ray powder diffraction data.
Keywords :
symmetry reduction , lithium lanthanum zirconate (LLZO) , garnet , crystal structure
