کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1518640 1511631 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Chiral optical absorption bands in [ ]Cd1−x Mnx Ga2S4 semiconducting compound
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Chiral optical absorption bands in [ ]Cd1−x Mnx Ga2S4 semiconducting compound
چکیده انگلیسی
[ ]Cd1−x Mnx Ga2S4 is a semimagnetic semiconductor and it has revealed an exceptional property namely 'optical activity'. Therefore, a spectroscopic investigation of chiral absorption bands has been carried out with the view to examine the role of d*-d states of manganese atoms. It has been found that inner transitions of Mn++ dominate the spectral region with a special feature, indicating that these transitions show the presence of a substantial contribution from the magnetic dipole moment which rotates the electric vector of the incident polarized radiation. The origin is associated to the lack of a symmetry center caused by the ordered vacancies in this defect compound.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 66, Issue 11, November 2005, Pages 2011-2014
نویسندگان
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