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 1009007 _database_code_amcsd 0016869 5.033 5.033 11.411 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 .4537 0 1/3 .025 .02 .021 0 0 -.0018 As1 .4531 0 .8333 .0233 .0188 .0183 0 0 -.0005 O1 .401 .314 .3849 .052 .039 .027 .034 .012 .013 O2 .402 .291 .8732 .051 .039 .030 .032 -.011 -.012