کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1669700 1008887 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Element-specific electronic structure of Mn dopants and ferromagnetism of (Zn,Mn)O thin films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Element-specific electronic structure of Mn dopants and ferromagnetism of (Zn,Mn)O thin films
چکیده انگلیسی

Element-specific electronic structure of (Zn,Mn)O thin films with various Mn concentrations has been investigated using X-ray absorption and emission spectroscopy. According to comparison between the experimental spectra and the density functional theory calculations (partial density of states and exchange interactions for various Mn defect configurations), the substitutional Mn impurities do not induce ferromagnetism in (Zn,Mn)O samples. The ferromagnetic properties can be obtained when defect configurations consisting of both substitutional and interstitial Mn atoms are present. The ferromagnetism in ZnO-based magnetic semiconductors is favored to be Ruderman–Kittel–Kasuya–Yoshida type and the established theoretical model is in a good agreement with the X-ray spectroscopic measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 518, Issue 10, 1 March 2010, Pages 2825–2829
نویسندگان
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