کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1809196 | 1525189 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetocaloric behavior of rare earth doped La0.67Ba0.33MnO3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Colossal Magneto Resistive (CMR) materials with the compositional formula, La0.34R0.33Ba0.33MnO3 (R=Pr, Nd, Sm and Gd) were prepared by the sol gel technique. After characterizing the samples structurally, a systematic investigation of magnetization has been undertaken, over a temperature range 70-300Â K at 0.05Â T magnetic field. An effort has been made to calculate the magnetocaloric behavior of all the samples theoretically using the experimental magnetization data. Other important parameters of magnetocaloric effect (MCE) such as maximum entropy change, full width at half-maximum, relative cooling power and maximum adiabatic temperature change were also computed. The observed behavior has been explained qualitatively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 457, 15 January 2015, Pages 275-279
Journal: Physica B: Condensed Matter - Volume 457, 15 January 2015, Pages 275-279
نویسندگان
N. Pavan Kumar, G. Lalitha, E. Sagar, P. Venugopal Reddy,