Inclined magnetic structure of iron borate PrxY1-xFe3(BO3)(4): A neutron diffraction study and crystal-field calculations

Описание

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1103/PhysRevB.91.134416

Аннотация: The magnetic structure of the mixed rare-earth system PrxY1-xFe3(BO3)(4) has been studied by elastic neutron powder diffraction and magnetic measurements. A spin reorientation from easy axis to easy plane occurs in the concentration range x = 0.67-0.45 through the formation of inclined magnetic structures. The inclination of the FeПоказать полностьюmoments from the basal plane depends on the Pr content and ranges from 67(2)degrees for x = 0.67 to 16(4)degrees for x = 0.45 at T = 3K. A nonmonotonic change of the inclination angle with temperature is found for all compounds but there is no sign of a spontaneous spin reorientation in the temperature range of magnetic order. An approach based on a crystal-field model for the Pr3+ ion and on the molecular-field approximation is used to describe the magnetic characteristics of the system PrxY1-xFe3(BO3)(4). A good agreement between the experimental and calculated temperature dependences of the magnetic susceptibilities and the angle of inclination of Fe moments from the basal plane has been achieved.

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Издание

Журнал: PHYSICAL REVIEW B

Выпуск журнала: Vol. 91, Is. 13

ISSN журнала: 10980121

Место издания: COLLEGE PK

Издатель: AMER PHYSICAL SOC

Авторы

  • Ritter C. (Institute Laue-Langevin)
  • Pankrats A.I. (Siberian Federal University)
  • Velikanov D.A. (L. V. Kirensky Institute of Physics, Siberian Branch of RAS)
  • Temerov V.L. (L. V. Kirensky Institute of Physics, Siberian Branch of RAS)
  • Gudim I.A. (L. V. Kirensky Institute of Physics, Siberian Branch of RAS)
  • Demidov A.A. (Bryansk State Technical University)

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