کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8152640 | 1524755 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Edge magnetism in triangular silicene quantum dots
ترجمه فارسی عنوان
مغناطیسی لبه در نقاط کوانتومی سیلیکن مثلثی
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
چکیده انگلیسی
The interplay among electron-electron and intrinsic spin-orbit interactions (ISOI) at the zigzag edge of triangular quantum dots (ZTQDs) was analyzed by means of the mean-field Kane-Mele-Hubbard model. It was shown that the magnetic anisotropy (in-plane and out-of-plane magnetic configurations) significantly modifies electronic and magnetic properties of ZTQDs. The in-plane configuration is more energetically stable than the other one. However, its magnetization becomes easier depolarized as a continuous function as strengths of electric field E and ISOI increase. This is in contrast to the out-of-plane magnetization, which is more robust and becomes depolarized in a step-like way. Moreover, the energy gap only vanishes in the out-of-plane case by adjusting E and ISOI strengths, and thus we cannot expect a topological insulator phase in the in-plane magnetic configuration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 466, 15 November 2018, Pages 301-305
Journal: Journal of Magnetism and Magnetic Materials - Volume 466, 15 November 2018, Pages 301-305
نویسندگان
Rouhollah Farghadan,