As Ga O4 Philippot E, Armand P, Yot P, Cambon O, Goiffon A, McIntyre G, Bordet P Journal of Solid State Chemistry 146 (1999) 114-123 Neutron and x-ray structure refinements between 15 and 1083 K of piezoelectric gallium arsenate, Ga As O4: temperature and pressure behavior compared with other alpha-quartz materials _cod_database_code 1009003 _database_code_amcsd 0016865 5.007 5.007 11.391 90 90 120 P3_121 atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Ga1 .4523 0 1/3 .010 .011 .0099 0 0 -.0019 As1 .4496 0 .8333 .0123 .0083 .0079 0 0 .0007 O1 .400 .315 .3838 .019 .018 .016 .016 .004 .004 O2 .400 .293 .8720 .030 .025 .015 .019 -.008 -.008