کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1799527 1524852 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic properties and magnetocaloric effect in amorphous Co35Er65 ribbon
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Magnetic properties and magnetocaloric effect in amorphous Co35Er65 ribbon
چکیده انگلیسی


• Magnetic properties and magnetocaloric effect of the amorphous Co35Er65 ribbon are reported.
• Analysis of the magnetic ordering transition using the Landau theory and Arrott׳s plots reveals occurrence of a FOMT in the amorphous Co35Er65 ribbon.
• The value of (−ΔSmax) reaches a maximum value of 5.97 J/kg K at 5 T field.

Amorphous Co35Er65 ribbon was synthesized using melt spinning technique. Their magnetic properties and magnetocaloric effect (MCE) have been studied by the magnetization and isothermal magnetization of different temperature measurements. It is found that the sample obeys to the first-order magnetic transition (FOMT) from ferromagnetic (FM) to paramagnetic (PM) state at the Curie temperatures TC=10 K. Using the thermodynamic Maxwell׳s relation, magnetic entropy change (−ΔSM)(−ΔSM) is estimated and discussed in terms of MCE. The ribbon presents a large magnetocaloric effect at low temperature reaching 5.97 J/K kg under magnetic field of 0–5 T.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 369, November 2014, Pages 92–95
نویسندگان
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