Crystal Structure and Magnetic Anisotropy of Ludwigite Co2FeO2BO3


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.

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Выпуск журнала: Vol. 113, Is. 6

Номера страниц: 1015-1024

ISSN журнала: 10637761

Место издания: NEW YORK



  • Ivanova N.B. (Krasnoyarsk State Agrarian University)
  • Bartolome J. (Instituto de Ciencia de Materiales de Aragon,CSIC-Universidad de Zaragoza,Departamento de Fisica de la Materia Condensada)
  • Knyazev Y.V. (Siberian Federal University)
  • Velikanov D.A. (Kirenskii Institute of Physics,Russian Academy of Sciences)
  • Ovchinnikov S.G. (Siberian Aerospace Academy)
  • Vasiliev A.D. (Kirenskii Institute of Physics,Russian Academy of Sciences)
  • Patrin G.S. (Kirenskii Institute of Physics,Russian Academy of Sciences)
  • Kazak N.V. (Kirenskii Institute of Physics,Russian Academy of Sciences)
  • Bezmaternykh L.N. (Kirenskii Institute of Physics,Russian Academy of Sciences)
  • Platunov M.S. (Siberian Aerospace Academy)

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