Effect of average A-site cation radius on complex permeability of perovskite manganite La0.65Nd0.05(Sr,Ba)0.3MnO3 |
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| Authors: | Zhiming Wang Feng Xu Yelei Du Jinan Zhu He Zhang |
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| Affiliation: | 1. Institute of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China;2. Department of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China;3. National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, PR China |
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| Abstract: | A series of polycrystalline perovskite samples La0.65Nd0.05(Sr, Ba)0.3MnO3 were prepared by a sol–gel technique. Their permeabilities have been measured at different fields and temperatures. A pronounced dispersion of the relaxation was observed near the Curie temperature TC, which was obtained from the permeability vs. temperature curves. The effects of the average A-site cation radius 〈rA〉 and the A-site cation disorder parameter σ2(rA) on the permeability were investigated. With increasing 〈rA〉 and σ2(rA), the permeability of La0.65Nd0.05(Sr, Ba)0.3MnO3 increases linearly. |
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| Keywords: | 76.90.+d 75.30.Vn 71.70.Ej |
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