کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10706526 | 1023482 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurements of the shear modulus and plastic flow of vortex lattice in YBCO single crystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
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چکیده انگلیسی
In this study, we report on the current-voltage characteristics of a bridge cut out from YBCO single crystal. The de-pinning critical current and the flux flow resistance dependencies on temperature have been investigated for samples placed in a zero magnetic field and in a magnetic field of 1.5 T applied parallel to the c-axis of the crystal (Hâ¥c). The overall observed general behavior is similar to the flux creep and flux flow behaviors that have been observed in “cold” superconductors. Down to 78 K, the glass-like behavior of used crystals is absent. Between the irreversible and the shoulder temperatures, the existence of spatially inhomogeneous vortex phase is very plausible: solid phase--in the vicinity of twins and liquid--far from twin planes. Direct measurements of the shear modulus and plastic flow of vortex lattice were performed and included.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 5, Issue 3, March 2005, Pages 285-288
Journal: Current Applied Physics - Volume 5, Issue 3, March 2005, Pages 285-288
نویسندگان
M. EL-Saadawy, Mohammad M. Abu-Samreh,