کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10156017 | 1666369 | 2019 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced ferromagnetism in WS2 via defect engineering
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ferromagnetism in 2D materials has attracted extensive research interests. Defects are expected to play a pivotal role in the ferromagnetism based on theoretical calculations. However, there are few experimental results reported and mechanism of ferromagnetism associated with defects are not clear. In this paper, we employ WS2 powders as an example to study the relationship between defects and magnetism by annealing the powders under reducing atmosphere. Magnetic measurements indicate that pristine WS2 powders show weak ferromagnetism at room temperature. Compared to pristine WS2 powder, annealed samples show significant enhancement of magnetization, which is strongly dependent on annealing temperature. The enhanced magnetization is attributed to defects induced by annealing, evidenced by X-ray photoelectron spectroscopy and electron paramagnetic resonance spectroscopy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 772, 25 January 2019, Pages 740-744
Journal: Journal of Alloys and Compounds - Volume 772, 25 January 2019, Pages 740-744
نویسندگان
Xiang Ding, Ting Liu, Sohail Ahmed, Nina Bao, Jun Ding, Jiabao Yi,