کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5358949 1503675 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural and magnetic properties in Mn-doped ZnO films prepared by pulsed-laser deposition
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Structural and magnetic properties in Mn-doped ZnO films prepared by pulsed-laser deposition
چکیده انگلیسی
We investigated the structural and magnetic properties of Zn0.95Mn0.05O films prepared on sapphire substrates by pulsed-laser deposition. Only low temperature ferromagnetism (Curie temperature lower than 50 K) was observed in Mn-doped samples, while pure ZnO film shows a typical paramagnetic behavior. Structural analyses indicate that the substitutional Mn2+ ions play a significant role for the low temperature ferromagnetism. Lattice defects such as VO and VZn were not proven to be effective factors for the origin of ferromagnetism in the films. The low temperature ferromagnetism might be interpreted as p-d hybridization from indirect coupling of Mn ions (Mn-O-Mn).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 289, 15 January 2014, Pages 42-46
نویسندگان
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