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NEUTRON DIFFRACTION STUDIES OF FERROELECTRICS

Author
Frazer, B. C.
Published
United States : [publisher not identified], 1961.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1961.
Physical Description
microopaque : positive ; 8 x 13 cm

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Summary
Neutrons were used to somewhat greater advantage than x rays in determining ferroelectric structures. This was mostly because so many ferroelectrics contain light atoms in the presence of relatively heavy ones. Two of the most important ferroelectrics, BaTiO/sub 3/ and Rochelle salt, are discussed as examples. In both cases it seems that x-ray solutions are not feasible. It was possible to obtain a neutron solution for the BaTiC/sub 3/ structure, but because of the pseudosymmetric nature of the structure this turned out to be a difficult problem. The outlook for a detailed solution of the ferroelectric structure of Rochelle salt is not very hopeful, however, some useful results were obtained. An interesting by-product of the neutron study of this crystal was the discovery that irradiation by x rays and gamma rays produces serious microstructural changes. Previously the effects of radiation on Rochelle salt were ascribed entirely to macroscopic changes. (auth)
Report Numbers
BNL-5747
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: AT-30-2-GEN-16
NSA number: NSA-17-006647
OSTI Identifier 4734655
Research organization: Brookhaven National Lab., Upton, N.Y.
View MARC record | catkey: 38680340