کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1802731 1024603 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic field-induced ferromagnetism in iron oxide microspheres
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Magnetic field-induced ferromagnetism in iron oxide microspheres
چکیده انگلیسی

A magnetic field of 12 T was applied during the annealing of amorphous α-Fe2O3 microspheres. The authors demonstrate that magnetic field processing leads to the formation of γ-Fe2O3 phases in the microspheres, and the field-treated microspheres exhibit typical room-temperature ferromagnetic behavior, whereas non-field-heated sample presents paramagnetism. The improvement in magnetic properties is considered to be a result of magnetic field-induced transformation from α-Fe2O3 to γ-Fe2O3.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 321, Issue 20, October 2009, Pages 3411–3414
نویسندگان
, , , , , ,