کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1800423 1024528 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The role of demagnetization factor in determining the ‘true’ value of the Curie temperature
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
The role of demagnetization factor in determining the ‘true’ value of the Curie temperature
چکیده انگلیسی

The Curie temperature, TC, is the temperature above which a material loses its long-range ferromagnetic order. Considering the equation of state of a ferromagnet in the mean-field approximation it has been shown theoretically that the value of the demagnetization factor N has a significant influence on the perceived location of TC on the temperature scale. A series of precise measurements of magnetization using two differently shaped single crystals of high-purity gadolinium was carried out to prove this result experimentally and develop a procedure leading to the ‘true’ value of TC.


► Theoretically showed that observed Curie temperature (TC) is sample shape dependent.
► Measured magnetization of two differently shaped high-purity single crystals of gadolinium.
► Experimentally proved that the shape of the sample influences the perceived location of TC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 323, Issue 20, October 2011, Pages 2453–2457
نویسندگان
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