Synthesis and Mössbauer study of new garnets Ln3Fe5−tGatO12 (Ln = Nd,Pr) |
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| Authors: | IS Lyubutin BV Mill RI Chalabov AV Butashin |
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| Institution: | Institute of Crystallography, USSR Academy of Sciences, Moscow, USSR;Moscow State University, USSR;Institute of Crystallography, USSR Academy of Sciences, Moscow, USSR;Moscow State University, USSR |
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| Abstract: | The range of existence of the garnet phase in Nd3Fe5?tGatO12 and Pr3Fe5?tGatO12 solid solutions was determined to be 1.25 ? tNd ? 5 and 22.25 ? tPr ? 5, respectively Mossbauer spectroscopy was used to study the Fe3+ and Ga3+ distribution over the octahedral and tetrahedral sites of the garnet and to give an estimate of the stabilization energies of cations at different sites The Néel temperatures were determined for compositions with t ? 2.5. Some specific features of the phase transition from the magnetically ordered state to the paramagnetic one are discussed. |
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