Structural and magnetic properties of CaAl4Fe8O19 |
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Authors: | D K Kulkarni C S Prakash |
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Affiliation: | (1) Department of Physics, Institute of Science, 440 001 Nagpur, India |
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Abstract: | A new compound, CaAl4Fe8O19, was synthesized for the first time and characterized by X-ray diffraction. It was found to have a hexagonal magnetoplumbite structure with lattice parametersa=5·83 Å andc=22·14 Å. The electrical studies showed that the compound was a semiconductor with energy of activationq=0·86 eV. The magnetic susceptibility was studied in the temperature range 300 K to 850 K, in which the compound was paramagnetic with a Curie molar constant of 31·03. |
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Keywords: | Magnetoplumbite electrical conductivity paramagnetic susceptibility curie molar constant |
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