Cr7.87 Ga4.13 O19 Sr Obradors X, Labarta A, Isalgue A, Tejada J, Rodriguez J, Pernet M Solid State Communications 65 (1988) 189-192 Magnetic frustration and lattice dimensionality in Sr Cr8 Ga4 O19 _cod_database_code 1006009 _database_code_amcsd 0015456 5.7993 5.7993 22.6584 90 90 120 P6_3/mmc atom x y z occ Sr1 0 0 .25 Ga1 0 0 0 .04 Cr1 0 0 0 .96 Ga2 0 0 .2561 .5 Ga3 1/3 2/3 .0282 Ga4 1/3 2/3 .1925 .135 Cr2 1/3 2/3 .1925 .865 Ga5 .1681 .3362 -.1084 .1367 Cr3 .1681 .3362 -.1084 .8633 O1 0 0 .1515 O2 1/3 2/3 -.0545 O3 .1821 .3642 .25 O4 .1567 .3134 .0528 O5 .5053 .0106 .1510