کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8153120 | 1524763 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic properties of superparamagnetic β-NaFeO2 nanoparticles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
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چکیده انگلیسی
Superparamagnetic β-NaFeO2 nanoparticles of particle size 37â¯nm with orthorhombic crystal structure and space group Pn21a have been prepared by sol-gel method. Temperature dependent magnetic study has been performed. Its systematic analysis has been done to calculate the Curie and blocking temperatures along with its magnetic susceptibility. The Langevin fitting of the magnetic data has been carried out. It has been shown that the synthesized nanoparticles exhibit superparamagnetic behavior. The Neel's relaxation time has been calculated to further support its superparamagnetic nature. The synthesized β-NaFeO2 nanoparticles behave like ferromagnets below 80â¯K; they are superparamagnetic above 80â¯K-340â¯K and thereafter as paramagnetic. The possible mechanism of superparamagnetism has been discussed. It has been concluded that these nanoparticles can find wide applications in the area of biomedical sciences.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 458, 15 July 2018, Pages 62-65
Journal: Journal of Magnetism and Magnetic Materials - Volume 458, 15 July 2018, Pages 62-65
نویسندگان
Sarbjit Singh, Alexandr Tovstolytkin, Gurmeet Singh Lotey,