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Nuclear and magnetic diffuse scattering of neutrons from β‐ferrous oxalate dihydrate
Author(s) -
Śledzińska I.,
Murasik A.
Publication year - 1988
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889888005758
Subject(s) - neutron diffraction , scattering , neutron scattering , diffraction , crystallite , oxalate , magnetic structure , stacking , neutron , crystallography , materials science , chemistry , nuclear magnetic resonance , condensed matter physics , crystal structure , optics , physics , magnetic field , nuclear physics , inorganic chemistry , magnetization , quantum mechanics
Neutron diffraction experiments were carried out at 300 K and 4.2 K on polycrystalline samples of the α and β forms of FeC 2 O 4 .2D 2 O. Diffuse scattering has been observed from faulted structure of the β form. The intensity formula given by Takaki & Sakurai [ Acta Cryst. (1976), A 32 , 657–663] for X‐ray diffraction from a one‐dimensionally disordered crystal has been adapted to studies of diffuse nuclear and magnetic scattering of neutrons. The structure of β ‐FeC 2 O 4 .2D 2 O has been interpreted in terms of the stacking faults of four kinds of layers. Essentially the same behaviour for the magnetic susceptibility and intensity of magnetic peaks versus temperature was found for both forms.