Cationic distribution in relation to the magnetic properties of new M-hexaferrites with planar magnetic anisotropy BaFe{sub 12-2x}Ir{sub x}Me{sub x}O{sub 19} (Me = Co, Zn, x {approx} 0.85 and x {approx} 0.50)
- ENS de Physique de Grenoble, Saint Martin d`Heres (France)
Single crystals of BaFe{sub 12-2x}Ir{sub x}Me{sub x}O{sub 19} with Me = Co, Zn and 0{le}x{le}1 have been prepared by a flux method. Precise crystal structures of substituted compounds (Ir-Co with x = 0.85 and Ir-Zn with x = 0.50) have been determined by using a four-circular diffractometer, and cation distribution on all crystallographic sites has been refined. Magnetization measurements have been performed on single crystals at room and liquid helium temperatures. Observed magnetic anisotropy is planar, and saturation magnetizations are in good agreement with the cation distributions determined by X-ray diffraction. Magnetic anisotropy change is correlated with the substitutions of Ir for Fe cations on bipyramidal and octahedral sites of the R block, and Me for Fe cations on tetrahedral and bipyramidal sites.
- OSTI ID:
- 430254
- Journal Information:
- Journal of Solid State Chemistry, Vol. 120, Issue 1; Other Information: PBD: 15 Nov 1995
- Country of Publication:
- United States
- Language:
- English
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