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 1009008 _database_code_amcsd 0016870 5.040 5.040 11.408 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 .4542 0 1/3 .029 .02 .023 0 0 -.0021 As1 .4539 0 .8333 .0262 .0217 .0211 0 0 -.0006 O1 .401 .312 .3851 .060 .044 .035 .041 .012 .014 O2 .402 .289 .8736 .059 .042 .034 .036 -.012 -.012