کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1805077 | 1024670 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetoelastic modelling in soft nanocrystalline alloys
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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
Magnetoelastic effects in ultra soft nanocrystalline alloys are investigated theoretically and experimentally. From Hc measurements, extraction of magnetoelastic contribution is carried out using a formalism obtained revisiting random anisotropy model (RAM) in the light of domain walls (DW) displacements, our approach based on theoretical investigations on the way of a reversal of a correlated volume (CV) located in the vicinity of a DW. Modelling of magnetoelastic effects shows that even in perfectly relaxed samples, a magnetoelastic contribution exists due to elastic frustration experienced by a CV during its magnetization reversal. Magnitude of this energy is large enough to drive coercivity of samples featuring grain diameter D around 10Â nm, which are of major interest for applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 304, Issue 2, September 2006, Pages 145-149
Journal: Journal of Magnetism and Magnetic Materials - Volume 304, Issue 2, September 2006, Pages 145-149
نویسندگان
Geoffroy Olivier, Chazal Hervé, Porteseil Jean-Louis, Waeckerlé Thierry, Alves Francisco,