کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1595647 | 1515709 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ferromagnetism of lightly Co-doped ZnO nanoparticles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Ferromagnetism of lightly Co-doped ZnO nanoparticles Ferromagnetism of lightly Co-doped ZnO nanoparticles](/preview/png/1595647.png)
چکیده انگلیسی
Zn1âxCoxO (x=0-0.04) nanoparticles were synthesized by an auto-combustion method. X-ray diffraction and Raman scattering studies confirmed the incorporation of Co into the ZnO lattice. Hysteresis loops were observed at 300Â K in the samples with x=0.01-0.04, and the coercivity decreased with increasing Co content x. Temperature dependence of magnetization showed a usual steep upturn for transition metals doped ZnO at low temperature, however a simultaneous rapid decrease of coercivity below 50Â K was observed in this work. Both of the features could be associated with the localization and the low density of the carriers at low temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 145, Issues 11â12, March 2008, Pages 525-528
Journal: Solid State Communications - Volume 145, Issues 11â12, March 2008, Pages 525-528
نویسندگان
L.B. Duan, G.H. Rao, J. Yu, Y.C. Wang,