کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1522830 | 995316 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic and dielectric properties of HoMnO3 nanoparticles synthesized by the polymerized complex method
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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
In this paper, we report on the magnetic and dielectric properties of HoMnO3 nanoparticles with different size synthesized by a polymerized complex method have been investigated. The HoMnO3 nanoparticles crystallized in hexagonal perovskite-type structure. The zero-field-cooled magnetic susceptibility curve of HoMnO3 nanoparticles with averaged size of 30Â nm shows that complicated magnetic transitions occurred in a temperature range from 2 to 100Â K, which was confirmed by magnetic hysteresis loops. With increasing the particle size, the antiferromagnetic (AFM) transition temperature increases from 56 to 77Â K, due to the reduced surface-to-volume ratio. Moreover, with a decrease in particle size, the Mn-spin reorientation temperature (TSR) is enhanced from 44 to 48Â K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 140, Issue 1, 15 June 2013, Pages 126-129
Journal: Materials Chemistry and Physics - Volume 140, Issue 1, 15 June 2013, Pages 126-129
نویسندگان
Xianguo Liu, Siu Wing Or, Yuping Sun, Chuangui Jin, Yaohui Lv, Yuxi Wu,