La1.94 Ni O3.94 Sr0.06 Medarde M, Rodriguez-Carvajal J Zeitschrift fur Physik B102 (1997) 307-315 Oxygen vacancy ordering in La(2-x) Sr(x) Ni O(4-delta) (0 <= x <=0.5): the crystal structure and defects investigated by neutron diffraction _cod_database_code 1006133 _database_code_amcsd 0015861 5.4332 5.4994 12.5734 90 90 90 Bmab atom x y z occ La1 0 -.010 .3631 .97 Sr1 0 -.010 .3631 .03 Ni1 0 0 0 O1 .25 .25 -.008 .97 O2 0 .036 .1776