کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1553398 | 1513233 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A facile method to syntheses monodisperse γ-Fe2O3 nanocubes with high magnetic anisotropy density
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The performance of iron oxides, as a clinical tool for hyperthermia application, is strongly depending on their size and structural morphology. The precise control of the iron oxide shape and morphology offers a unique strategy to modify the strength of the dipolar interactions between iron oxide nanoparticles through the engineering of the magnetic surface anisotropy density. This article presents a novel recipe to synthesize γ-Fe2O3 nanocrystals with cubic morphology. The γ-Fe2O3 nanocubes were prepared through microwave assisted solvothermal technique. The use of 2,3-oxidosqualene results in iron oxide with cubic shape. The γ-Fe2O3 nanocubes were analyzed by X-ray diffractometer (XRD), transmission electron microscopy (TEM) and electron diffraction (SAED). The magnetic analysis revealed that the γ-Fe2O3 nanocubes have a saturation magnetization of 62 emu/g and magnetic surface anisotropy density Keff = 2 Ã 105 erg/cm3 compared to bulk iron oxide.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 68, April 2014, Pages 1-5
Journal: Superlattices and Microstructures - Volume 68, April 2014, Pages 1-5
نویسندگان
Waleed E. Mahmoud, Faten Al-Hazmi, Fowzia Al-Noaiser, A.A. Al-Ghamdi, Lyudmila M. Bronstein,