کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8154807 | 1524802 | 2016 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ferromagnetic behavior due to Al3+ doping into ZnO nanorods
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Al doped ZnO nanorods (NR's) having Al concentration up to 10Â mol% were grown by the hydrothermal method. XRD measurements showed that the Al substituted ZnO NR's maintained the hexagonal wurtzite structure for all levels of Al substitution. EDX measurements of the ZnO:Al NR's indicated that the Al substitution created additional Zn vacancies in the wurtzite structure which is reflected in the enhanced photoluminescence emission in the visible light spectra between 450 and 550Â nm of the more heavily doped ZnO:Al NR's. SEM images of the heavier doped ZnO:Al nanorods showed nano nodules being formed on the surface of the hexagonal shaped NR's. The saturation magnetizations of the ZnO:Al NR's as measured by a SQUID magnetometer increased to 10.66Ã10â4Â emu/g as more Al was substituted in. The hysteresis loops for the ZnO:Al NR's began to exhibit novel effects, such as horizontal shift (exchange bias field 0.0382Â kOe for the 9Â mol% NR) and butterfly shapes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 419, 1 December 2016, Pages 274-281
Journal: Journal of Magnetism and Magnetic Materials - Volume 419, 1 December 2016, Pages 274-281
نویسندگان
T. Yingsamphancharoen, P. Nakarungsee, T.S. Herng, J. Ding, I.M. Tang, S. Thongmee,