کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1820351 1525783 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vortex states in Bi2Sr2CaCu2O8+y single crystals with various configurations of artificial defects
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Vortex states in Bi2Sr2CaCu2O8+y single crystals with various configurations of artificial defects
چکیده انگلیسی

To study the influence of artificial hole defects on the vortex matter in high-Tc superconductors, we have measured electrical transport properties in the vortex state of Bi2Sr2CaCu2O8+y (Bi2212) single-crystal thin films which have hole configurations with different symmetries. In samples with a square hole array, the flow resistance of pancake vortices exhibits dips at multiples of the matching fields, while it is absent in a random hole configuration. Such matching effect occurs even in a vortex liquid phase, suggesting that the periodicity in hole configuration fabricated induces in-plane order in vortex-liquid flow.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 445–448, 1 October 2006, Pages 260–263
نویسندگان
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