کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5029031 | 1470656 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The Investigation of Electronic Structure of Transition Metal Doped TiO2 for Diluted Magnetic Semiconductor Applications: A First Principle Study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
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چکیده انگلیسی
Although titanium dioxide (TiO2) is a non-magnetic semiconductor material nevertheless it can be transformed into a magnetic semiconductor material, i.e. diluted magnetic semiconductor (DMS), by adding impurities which have magnetic properties. Transition metals are good candidate impurities to be added to TiO2 to form a DMS. This paper reports our investigations on the trends of electronic structure and magnetic properties of TiO2 based DMS with transition metals impurities (Sc, V, Cr, Mn, Fe, Co, Ni, Cu and Zn) by using density functional theory (DFT). TiO2-Fe and TiO2-Mn have big magnetic moment, with the values are about 4.21 Bohr Mag/cell and 3.48 Bohr Mag/cell, respectively. However, based on density of states, TiO2-Sc and TiO2-Ni have no change the magnetic characteristic of pure TiO2. Based on the magnetic and semiconductor properties, the candidates for DMS are TiO2-V, TiO2-Cr,TiO2-Mn, TiO2-Fe, and TiO2-Co system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Engineering - Volume 170, 2017, Pages 141-147
Journal: Procedia Engineering - Volume 170, 2017, Pages 141-147
نویسندگان
Nurul Fajariah, Wahyu Aji Eko Prabowo, Fadjar Fathurrahman, Asih Melati, Hermawan Kresno Dipojono,