کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10709839 1024537 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrical- and magneto-resistance control for magnetite nanoparticle sinter by regulation of heat treatment temperature
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Electrical- and magneto-resistance control for magnetite nanoparticle sinter by regulation of heat treatment temperature
چکیده انگلیسی
► We investigated electrical- and magneto-resistance controls in magnetite (Fe3O4) nanoparticle sinter (MNPS) by the regulation of heat treatment (HT) temperature. ► By changing the HT temperature, the coupling state between adjacent magnetite nanoparticles and the crystallinity of MNPS were altered. ► Below ∼600 °C, ER and MR were dominated by grain-boundary conduction, while above ∼600 °C they were determined by inter-grain conduction. ► The application of a magnetic field to the grain-boundary region, which had relatively random localized spins, caused a large enhancement in MR.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 323, Issue 6, March 2011, Pages 686-690
نویسندگان
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