Cummings J P, Simonsen S H
American Mineralogist 55 (1970) 90-97
The crystal structure of calcium niobate (CaNb2O6)
Locality: synthetic
_database_code_amcsd 0000196
14.926 5.752 5.204 90 90 90 Pbcn
atom x y z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Ca 0 .2244 .75 .00048 .00235 .00283 0 -.00034 0
Nb .1653 .3166 .2987 .00002 .00098 .00332 .00004 .00011 .00030
O1 .0893 .0997 .4040 1.4988
O2 .1003 .4280 .0056 1.8431
O3 .2576 .1351 .1266 .4638
Levy H A, Peterson S W, Simonsen S H
Physical Review 93 (1954) 1120-1121
Neutron diffraction study of the ferroelectric modification of potassium
dihydrogen phosphate
Note sample at T = 113 K
Note: low temperature polymorph of archerite
_database_code_amcsd 0015150
10.53 10.44 6.90 90 90 90 Fdd2
atom x y z Biso
K 0 0 .512 .4
P 0 0 0 .6
O1 .1160 .0345 .1310 .6
O2 -.0345 .1160 -.1235 .6
H .1880 -.0375 .1335 2.
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