| Magnetocaloric Effect in Colossal Magnetoresistance Material（ La0.6 Dy0.1 ） Sr0.3 MnO3 |
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| 引用本文： | 蔡之让,徐素军,刘宁,童伟,张裕恒.Magnetocaloric Effect in Colossal Magnetoresistance Material（ La0.6 Dy0.1 ） Sr0.3 MnO3[J].中国稀土学报(英文版),2005,23(1):59-62. |
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| 作者姓名： | 蔡之让 徐素军 刘宁 童伟 张裕恒 |
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| 作者单位： | CMR Materials Research Laboratory，Suzhou College，Suzhou 234000，China，Structure Research Laboratory，University of Science and Technology of China，Hefei 230026，China，CMR Materials Research Laboratory，Suzhou College，Suzhou 234000，China，Structure Research Laboratory，University of Science and Technology of China，Hefei 230026，China，Structure Research Laboratory，University of Science and Technology of China，Hefei 230026，China，Structure Research Laboratory，University of Science and Technology of China，Hefei 230026，China，Structure Research Laboratory，University of Science and Technology of China，Hefei 230026，China |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划) |
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| 摘 要： | The magnetocaloric effect was discovered in 1881by Warburg1]. When a magnetic field is applied to amagnetic material, the unpaired spins are aligned par allel to the magnetic field, which lowers the magneticentropy and causes the sample to heat up. I…
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| 关 键 词： | 磁热效应 特种合金 磁阻材料 镧 稀土元素 磁熵变化 |
Magnetocaloric Effect in Colossal Magnetoresistance Material (La0.6Dy0.1)Sr0.3MnO3 |
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| Cai Zhirang,XU Sujun,Liu Ning,Sun Yong,Tong Wei,ZHANG Yuheng.Magnetocaloric Effect in Colossal Magnetoresistance Material (La0.6Dy0.1)Sr0.3MnO3[J].Journal of Rare Earths,2005,23(1):59-62. |
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| Authors: | Cai Zhirang XU Sujun Liu Ning Sun Yong Tong Wei ZHANG Yuheng |
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| Abstract: | The magnetocaloric effect in the A-site doping colossal magnetoresistance material (La0.6Dy0.1)Sr0.3MnO3 was studied. From the measurement and calculation of isothermal magnetization (M-H) curves under various temperatures, a large magnetocaloric effect with ferromagnetic-paramagnetic transition, additional magnetism exchange action introduces additional magnetic entropy change was discovered. This result suggests that (La0.6Dy0.1)Sr0.3MnO3 is a suitable candidate as working substance at room temperature in magnetic refrigeration technology. |
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| Keywords: | magnetic refrigeration magnetocaloric effect magnetic entropy change Curie temperature rare earths |
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