Domain size effects in neutron and SR powder diffraction studies of some oxides

We discuss the properties of synchrotron radiation (SR) and neutron powder diffraction investigations of the crystal and magnetic structure of solids. Special emphasis is paid to the analysis of the full width at half maximum (FWHM) of the observed Bragg reflections and its relation with the size of...

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Podrobná bibliografie
Vydáno v:	Journal of Alloys and Compounds Ročník 286; číslo 1; s. 180 - 183
Hlavní autoři:	Przeniosło, R., Sosnowska, I., Żółtek, M., Wroblewski, T., Shiojiri, M., Hohlwein, D., Troyanchuk, I.O.
Médium:	Journal Article Konferenční příspěvek
Jazyk:	angličtina japonština
Vydáno:	Lausanne Elsevier B.V 01.05.1999 Elsevier BV Elsevier
Témata:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Exact sciences and technology info:eu-repo/classification/ddc/670 Inorganic compounds Magnetic properties and materials Magnetic structure Modulated magnetic structure Neutron diffraction Neutron diffraction and scattering Physics Powder diffraction Single-crystal and powder diffraction Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.) SR diffraction Structure of solids and liquids; crystallography Structure of specific crystalline solids Water, oxides, hydroxides, peroxides Magnetic structure Powder diffraction Modulated magnetic structure Neutron diffraction SR diffraction Powders Inorganic compounds Calcium Manganates Magnetic ordering Ternary compounds Transition element compounds Perovskites Bragg reflection Experimental study Tin oxides Ferrites Domain structure Barium oxides Size effect Iron oxides Quaternary compounds Synchrotron radiation Crystal structure
ISSN:	0925-8388, 1873-4669
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Popis
Shrnutí:	We discuss the properties of synchrotron radiation (SR) and neutron powder diffraction investigations of the crystal and magnetic structure of solids. Special emphasis is paid to the analysis of the full width at half maximum (FWHM) of the observed Bragg reflections and its relation with the size of the coherently ordered regions of the material. Two specific examples are discussed: a SR powder diffraction study of the crystal structure of the hexaferrite BaSn 2Fe 4O 11 and a neutron powder diffraction study of the magnetic ordering of the magnetic moments of manganese ions in the distorted perovskite system CaMn 7O 12.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/S0925-8388(98)01003-2