Тип публикации: статья из журнала
Год издания: 2011
Идентификатор DOI: 10.1134/S1063776111140172
Ключевые слова: Crystallographic directions, Crystallographic position, Iron substitution, Magnetic hardness, Magnetization axis, Two stage, Uniaxial magnetic anisotropy, Carbon dioxide, Cobalt, Crystallography, Iron oxides, Magnetic anisotropy, Magnetism, Single crystals, X ray diffraction, Crystal structure
Аннотация: Co3O2BO3 and Co2FeO2BO3 single crystals with a ludwigite structure are fabricated, and their crystal structure and magnetic properties are studied in detail. Substituted ludwigite Co2FeO2BO3 undergoes two-stage magnetic ordering at the temperatures characteristic of Fe3O2BO3 (T-N1 approximate to 110 K, T-N2 approximate to 70 K) ratПоказать полностьюher than Co3O2BO3 (T-N = 42 K). This effect is explained in terms of preferred occupation of nonequivalent crystallographic positions by iron, which was detected by X-ray diffraction. Both materials exhibit a pronounced uniaxial magnetic anisotropy. Crystallographic direction b is an easy magnetization axis. Upon iron substitution, the cobalt ludwigite acquires a very high magnetic hardness.
Журнал: JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS
Выпуск журнала: Vol. 113, Is. 6
Номера страниц: 1015-1024
ISSN журнала: 10637761
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER