کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1801680 | 1024574 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-assembled strontium ferrite dot array on Au underlayer
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Strontium ferrite (SrM) thin films were deposited on thermally oxidized silicon wafer with Au underlayer. Gold underlayers were prepared at various substrate temperatures by using a magnetron sputtering system. C-axis oriented SrM perpendicular films and preferred (1 1 1) orientation of underlayer have confirmed by X-ray diffraction patterns. The intensity of (1 1 1) diffraction line for Au and that of (0 0 l) diffraction line for strontium ferrite decrease with increase in substrate temperature (Tu) The maximum coercivity and remanent squareness ratio in perpendicular direction, at Tu of 500 °C, are 5.4 kOe and 0.68, respectively. The strength of the intergranular interaction of SrM magnetic particles is described by the parameter Îm. The SrM/Au films prepared at Tu above 100 °C have smaller Îm peak values than that for SrM/Au films prepared at Tu of room temperature. This behavior is related to low magnetostatic coupling between the magnetic particles separated by the non-magnetic amorphous phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 322, Issue 14, July 2010, Pages 2043-2046
Journal: Journal of Magnetism and Magnetic Materials - Volume 322, Issue 14, July 2010, Pages 2043-2046
نویسندگان
Arkom Kaewrawang, Ali Ghasemi, Xiaoxi Liu, Akimitsu Morisako,