کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1820956 | 1525788 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Voltage rectification in two-dimensional Josephson junction arrays
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
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چکیده انگلیسی
We study numerically the directed motion of vortices (antivortices) under an applied ac bias in two-dimensional Josephson junction arrays (JJA) with an asymmetrically modulated periodic vortex pinning potential. We find that the ratchet effect in large 2D JJA can be obtained using the RSJ model for the overdamped vortex dynamics. The rectification effect shows a strong dependence on vortex density as well as an inversion of the vortex flow direction with the ac amplitude, for a wide range of magnetic field around f = 1/2 (f being the vortex density). Our results are in good agreement with very recent experiments by D.E. Shalóm and H. Pastoriza [D.E. Shalóm, H. Pastoriza, Phys. Rev. Lett. 94 (2005) 177001].
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 437–438, 15 May 2006, Pages 195–198
Journal: Physica C: Superconductivity and its Applications - Volumes 437–438, 15 May 2006, Pages 195–198
نویسندگان
Verónica I. Marconi,