| 通过磁化曲线计算金属磁熵变 |
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| 引用本文： | 李桌棠,吴佩芳,陶永棋,茅德康.通过磁化曲线计算金属磁熵变[J].物理学报,1999,48(13):126-131. |
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| 作者姓名： | 李桌棠 吴佩芳 陶永棋 茅德康 |
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| 作者单位： | (1)上海大学无机材料系，上海 201800; (2)上海跃龙有色金属有限公司，上海 200949 |
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| 摘 要： | 用振动样品磁强计测量金属钆的磁化曲线，采用二步最小二乘法拟合出二元函数M(H,T)的表达式，然后通过热力学关系式计算出它的磁熵变.
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| 收稿时间： | 1999-06-10 |
Calculation of Magnetic Entropy Changes of Gadolinium from Magnetization Curves |
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| Li Zhuo-Tang,Wu Pei-Fang,Tao Yong-Qi and Mao De-Kang.Calculation of Magnetic Entropy Changes of Gadolinium from Magnetization Curves[J].Acta Physica Sinica,1999,48(13):126-131. |
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| Authors: | Li Zhuo-Tang Wu Pei-Fang Tao Yong-Qi and Mao De-Kang |
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| Abstract: | The magnetization curves of gadolinium were measured with a vibrating sample magnetometer, from which the function M(H,T) was obtained using two-step least square fitting. Then magnetic entropy changes can be calculated. These works can provide the perliminary information needed for the design of magnetic refrigerator. |
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