کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1816829 1525271 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Absolute negative mobility of charge carriers in diamond and interpretation of μSR experiments
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Absolute negative mobility of charge carriers in diamond and interpretation of μSR experiments
چکیده انگلیسی
A theoretical analysis is given to describe the evolution of the distribution function of non-equilibrium charge carriers, which were formed due to the capture of negative muon by a carbon atom. The electrons and holes thermalization by interaction with acoustic phonons is considered. Diffusion and mobility coefficients were calculated for non-equilibrium charge carriers in diamond at low medium temperatures (below 20 K) and the appearance of a negative mobility is predicted for some energies and temperatures. Results of numerical calculations of charged cloud evolution in diamond are presented. It is shown that at low temperatures the acceptor center μB is rapidly formed in a paramagnetic state due to collecting of holes at the charged center. The results explain the experimental negative muon polarization dependence versus temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volumes 374–375, 31 March 2006, Pages 340-346
نویسندگان
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