کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10710329 | 1024673 | 2005 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Generalized mean-field theory for metals and semiconductors with magnetic impurities
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Random systems of magnetic moments positioned in cites of a crystal lattice and interacting via RKKY- or Bloembergen-Rowland-type interaction are considered in the framework of generalized mean-field theory (GMFT) based on calculating and analyzing distribution functionsF(H) of random local magnetic fields H. For concentrated systems (where the random local field is produced by a number of interacting magnetic moments), the function F(H) turns out to be Gaussian one and all information about the system is contained in two parameters of that distribution only-it's width and maximum position. For rarefied systems (where the average distance between interacting moments is comparable with or larger than the interaction length), distribution functions are essentially non-Gaussian. GMFT has been applied for calculating the magnetic state of metals and semiconductors diluted with magnetic impurities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 293, Issue 2, May 2005, Pages 793-811
Journal: Journal of Magnetism and Magnetic Materials - Volume 293, Issue 2, May 2005, Pages 793-811
نویسندگان
E.Z. Meilikhov, R.M. Farzetdinova,