کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9834429 | 1524910 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic phase transition and magnetic entropy change in (Dy1âxRx)Co2, where R=La and Sm, compounds
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
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![عکس صفحه اول مقاله: Magnetic phase transition and magnetic entropy change in (Dy1âxRx)Co2, where R=La and Sm, compounds Magnetic phase transition and magnetic entropy change in (Dy1âxRx)Co2, where R=La and Sm, compounds](/preview/png/9834429.png)
چکیده انگلیسی
Magnetization properties were measured for a series of Dy1âxSmxCo2 and Dy1âxLaxCo2 compounds. It was found that the magnetization lowers when the Dy content decreases in the compounds. In both systems, a metamagnetic transition and first-order magnetic phase transition is observed for certain ranges of the Dy content, and gradually weakens until it disappears as the content of Dy decreases. The magnetic entropy changes |ÎSm|, as a function of the temperature in the magnetic field of 1Â T for both series of compounds, have been calculated. Although the |ÎSm| decreases with the decrease of Dy, it does remain fairly large within a certain range of the Dy content. The curie temperature can be adjusted by adjusting x, which indicates that the (Dy1âxRx)Co2 (R=Sm, La) compounds may have potential applications as magnetic refrigerants.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 288, March 2005, Pages 22-26
Journal: Journal of Magnetism and Magnetic Materials - Volume 288, March 2005, Pages 22-26
نویسندگان
Kun Xie, Weipeng Lv, Xiaoping Song, Yaoming Zhu, Zhanbo Sun,