Ba2 Cu Hg0.98 O4.34 Alexandre E, Loureiro S, Antipov E, Bordet P, de Brion S, Capponi J, Marezio M Physica C 245 (1995) 207-211 On the possibility of replacing Hg by Cu in the Hg Ba2 Cu O(4+d) phase synthesized under high-pressure _cod_database_code 1008676 _database_code_amcsd 0016562 3.86586 3.86586 9.4764 90 90 90 P4/mmm atom x y z occ Hg1 0 0 0 .98 Ba1 .5 .5 .2950 Cu1 0 0 .5 O1 0 0 .203 O2 0 .5 .5 O3 .5 .5 0 .34