کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1596000 | 1515703 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Theoretical investigations of transport through a Kondo dot with a side-coupled noninteracting quantum-dot array
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Theoretical investigations of transport through a Kondo dot with a side-coupled noninteracting quantum-dot array Theoretical investigations of transport through a Kondo dot with a side-coupled noninteracting quantum-dot array](/preview/png/1596000.png)
چکیده انگلیسی
Based on the slave boson approach and the Keldysh Green's function technique, we investigate theoretically the transport properties of a mesoscopic structure consisting of a Kondo quantum dot with a side-coupled noninteracting quantum-dot array at zero temperature, in which only the Kondo dot is coupled to the leads. When the interdot coupling strengths inside the sided-coupled noninteracting quantum-dot array are compared with the Kondo temperature of the single Kondo dot, the local density of states (LDOS) may be decomposed into one Breit-Wigner and multiple Fano line shapes due to the Fano-Kondo interactions when the appropriate system parameters are considered. The odd-even parity of the linear conductance is also found with the number of side-coupled quantum dots in the array changing, in which the energy levels of quantum dots are pinned at the Fermi energy in the leads. The odd-even parity is broken when the energy levels of side-coupled quantum dots in the quantum array depart from the Fermi energy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 146, Issues 11â12, June 2008, Pages 502-505
Journal: Solid State Communications - Volume 146, Issues 11â12, June 2008, Pages 502-505
نویسندگان
Y.S. Liu, X.F. Yang, Y.J. Xia,