Vortex dynamics in (Tl,Pb)(Sr,Ba)2Ca2Cu3Oy single crystal
β Scribed by Shokat Keshavarzi; Joseph Horvat; Meng Jun Qin; Xiaolin Wang; Shi Xue Dou
- Book ID
- 108239663
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 114 KB
- Volume
- 460-462
- Category
- Article
- ISSN
- 0921-4534
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π SIMILAR VOLUMES
By analyzing the flux-line dynamics and the critical current density as a function of temperature and magnetic field in Tl2Ba2Ca2Cu3010 single crystals, we have identified different pinning regimes. We have shown that the break in slope in the Jc vs. T curve at T=TCR may be caused by the crossover f
K and has a logarithmic temperature dependence below 40 K. An anomalous dimpling behavior occurs near the origin of the loop for powder sample. This Je decreases slightly with magnetic field at low temperature and reaches a stable value at high field. The flux pinning centers may be considered as co