کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1596949 1002872 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of periodic magnetic-electric barriers on electron transport in a nanostructure
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
The effect of periodic magnetic-electric barriers on electron transport in a nanostructure
چکیده انگلیسی
Using the transfer matrix method, the transmission probability, the spin polarization and the electron conductance of a ballistic electron are studied in detail in a nanostructure. We observe that these quantities sensitively depend on the number of periodic magnetic-electric barriers. As the number of periods increases, the resonance splitting increases, the number of the resonance peaks increases and the peaks become sharper as well as the spin polarization being enhanced. Surprisingly, a polarization of nearly 100% can be achieved by spin-dependent resonant tunneling in this structure, although the average magnetic field of the structure is zero.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 141, Issue 2, January 2007, Pages 61-64
نویسندگان
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