Ein Beitrag zur Pyrochlorstruktur an La2Zr2O7

Single crystals of the compound La₂Zr₂O₇ were prepared for the first time and examined by x-ray investigations. La₂Zr₂O₇ crystallizes in the space group O? Fd3m, a = 10.786 Å. The free oxygen parameter, which is characteristic for the pyrochlore structure, was found to be x = 0.295.