Magnetic and transport properties in Sr1−xLaxFe1−xMnxO3 |
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Authors: | Jiyu Fan Li PiSicheng Liao Yuheng Zhang |
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Affiliation: | Structure Research Laboratory, University of Science and Technology of China, Hefei, 230026, PR, China |
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Abstract: | The magnetic and transport properties in the perovskite Sr1−xLaxFe1−xMnxO3 have been explored. As x rises, the systemic ferromagnetism increases gradually and cluster-spin-glass state occurs in the low-temperature region. For 0.3?x?0.7, the ferromagnetic phase separation from the paramagnetic phase was observed from the results of electron-spin-resonance measurement. Although all samples show a semiconducting behavior, their transport properties are dominated by two different mechanisms, namely, the electronic transport of x?0.5 samples is realized by thermal activation but the variable-range hopping is applied in x?0.7 ones. The different transport mechanism can be understood from the Mn/Fe ions interaction. |
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Keywords: | 75.47.Lx 75.60.Ej |
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