Temperature Elevation of Current-Driven Phase-Slip Centers in YBa2Cu3O7 Strips

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• 作者：Khalil Harrabi (1)
  
  1. Physics Department ; King Fahd University of Petroleum and Minerals ; 31261 ; Dhahran ; Saudi Arabia
  
• 关键词：Superconductivity ; Hotspot ; Phase slip centers
• 刊名：Journal of Superconductivity Incorporating Novel Magnetism
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：28
• 期：2
• 页码：573-577
• 全文大小：1,686 KB
• 参考文献：1. Goltsman, G.N., Okunev, O., Chulkova, G., Lipatov, A., Semenov, A., Smirnov, K., Voronov, B., Dzardanov, A., Williams2, C., Sobolewski, R.: App. Phys. Lett. 79, 705 (2001)
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• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Superconductivity, Superfluidity and Quantum Fluids
  Magnetism and Magnetic Materials
  Condensed Matter
  Characterization and Evaluation Materials
  
• 出版者：Springer New York
• ISSN：1557-1947

文摘

We have studied the destruction of the superconductivity in narrow YBCO strips at different temperatures caused by an electrical current pulse. Different dissipative regimes can be distinguished, and phase slip center (PSC) are more likely to appear for an overcritical current and close to the transition temperature T c . However, far below T c , the dissipation generates a hotspot (HS). Temperatures reached in these modes were calculated based on the Joule effect. The results of these computations are consistent with all the specific cases, PSCs and HSs, measured experimentally. One of the most attractive applications of the superconductivity at non-equilibrium regime is the single photon detection. Its principle relies on the hotspot phenomena and mainly the heat evacuation, which can determine the reset time of the photon detection.