MAGNETIC PROPERTIES OF BaFe<sub>4</sub>Mn<sub>2</sub>O<sub>11</sub> R-TYPE HEXAGONAL FERRITE
X. ObradorsFacultat de Fisica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, SpainA. IsalguéDepartament de Fisica, ETSAB Universitat Polytènica de Catalunya, Diagonal 649, 08028 Barcelona, SpainA. CollombM. PernetJ. TejadaFacultat de Fisica, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, SpainJ.C. Joubert
1985fr
ABI
Abstract
The magnetic properties and cation distribution of a new ferrimagnetic R-type hexagonal ferrite have been studied from isothermal magnetization and Mössbauer spectroscopy measurements. The compound BaFe4Mn2O11 possess a collinear spin structure and a strong uniaxial magnetic anistropy. By means of the law of approach to saturation and the singular point detection technique magnetic anisotropy field up to 50 kOe is obtained at T = 4.2 K. It is shown that Mn ions have a full preference for the octahedral 6g sublattice and crystallochemical reasons for this fact are given.
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