کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1499050 993291 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observation of the defect states in individual Co-doped ZnO dilute magnetic semiconducting nanostructures by electron energy-loss spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Observation of the defect states in individual Co-doped ZnO dilute magnetic semiconducting nanostructures by electron energy-loss spectroscopy
چکیده انگلیسی

Defects play a crucial role in room temperature ferromagnetism of dilute magnetic semiconductors. Using valence electron energy-loss spectroscopy (EELS), it was found that the band gap of Co-doped ZnO was smaller than undoped ZnO and some midgap states appeared. Using core-loss EELS, the fine structures of the O K-edge exhibit material-specific defect features in the oxygen spectra. The EELS measurements with super high spatial resolution provide unambiguous indications that defects are presented in Co-doped ZnO nanostructures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 69, Issue 3, August 2013, Pages 262–265
نویسندگان
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