Magnetic entropy change in perovskite manganites La0.65Nd0.05Ca0.3Mn0.9B0.1O3 (B=Mn,Cr, Fe) |
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| Affiliation: | 1. Laboratoire de Physico-chimie des Matériaux, Faculté des Sciences de Monastir, Département de Physique, Université de Monastir, 5019 Monastir, Tunisie;2. Institut Néel, CNRS et Université Joseph Fourier, BP 166, 38042 Gronoble, France;3. Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, Université de Sfax, B.P. 1171, 3000 Sfax, Tunisie;1. Laboratoire de Physique Appliquée, Faculté des Sciences de Sfax, B.P. 802, Université de Sfax, Sfax 3018, Tunisia;2. Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble cedex 9, France;1. Institute of Materials Science, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Hanoi, Vietnam;2. Department of Physics, Chungbuk National University, Cheongju 361-763, South Korea;3. Department of Chemistry, Chungbuk National University, Cheongju 361-763, South Korea;4. Quang Ninh University of Industry, Quang Ninh, Vietnam;5. Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 449-791, South Korea;1. Engineering Technology Research Center of Magnetic Materials, School of Physics & Materials Science, Anhui University, Hefei, 230601, People''s Republic of China;2. Department of Physics, Riphah International University, Faisalabad Campus, Pakistan;1. Department of Physics, Chungbuk National University, Cheongju 361-763, Republic of Korea;2. Scientific-Practical Research Centre of NAS of Belarus, BY-220072 Minsk, Belarus |
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| Abstract: | We have investigated the effect of B-site dopant on magnetic entropy change in perovskite manganite samples of La0.65Nd0.05Ca0.3MnO3, La0.65Nd0.05Ca0.3Mn0.9Cr0.1O3, and La0.65Nd0.05Ca0.3Mn0.9Fe0.1O3 prepared by sol–gel technique. The maximum ΔSH is in the order of −1.68 J/kg K and peaks at Curie temperature for La0.65Nd0.05Ca0.3MnO3 upon 10 kOe applied field change. For the sample with B-site dopant, a decrement of the maximum magnetic entropy change has been observed. |
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