کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9803414 1516466 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Are values of parameters describing magnetic properties of crystal really fixed?
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Are values of parameters describing magnetic properties of crystal really fixed?
چکیده انگلیسی
The selected factors (e.g., deviation from stoichiometry, doping level, or free-carrier concentration) influencing the lattice parameter value of a diluted magnetic semiconductor (DMS) are discussed. Changes in the lattice parameter driven by these factors modify the superexchange interaction between the magnetic ions. It is demonstrated that in specific situations parameters describing the superexchange cannot be treated as fixed ones and effects mentioned above play a noticeable role in some materials so cannot be neglected. The cases of the well-known Zn1−xMnxTe and Ga1−xMnxAs mixed crystals are analyzed as examples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 401, Issues 1–2, 29 September 2005, Pages 272-280
نویسندگان
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