کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1591456 | 1515582 | 2015 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic properties of two nearest Cu-doped monolayer WS2: A first-principles study
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Magnetic properties of two nearest Cu-doped monolayer WS2: A first-principles study Magnetic properties of two nearest Cu-doped monolayer WS2: A first-principles study](/preview/png/1591456.png)
چکیده انگلیسی
We investigate magnetic properties of Cu-doped monolayer WS2 for 6.25%, 8% and 12.5% Cu concentration using the first-principles methods based on density functional theory. The results show that one Cu-doped monolayer WS2 is non-magnetic, while two Cu-doped systems of the nearest neighbor configuration are ferromagnetic (FM). The hybridization between the Cu dopant and its neighboring S atoms results in the splitting of the energy levels near the Fermi energy. These results suggest the p-d hybridization mechanism for the magnetism of the Cu-doped WS2 monolayer structures. While the magnetic moment disappears with the increasing Cu-Cu distances. Our studies predict the nearest two Cu-doped WS2 monolayers to be candidates for thin dilute magnetic semiconductors. Moreover, the formation energy calculations also indicate that it is energy favorably and relatively easier to incorporate Cu atom into the WS2 monolayer under S-rich experimental conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 217, September 2015, Pages 66-69
Journal: Solid State Communications - Volume 217, September 2015, Pages 66-69
نویسندگان
Xu Zhao, Xianqi Dai, Congxin Xia,