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Electronic cooling in superconducting tunnel junctions
Institution:1. Department of Chemistry, Xixi Campus, Zhejiang University, Hangzhou 310028, China;2. Higher Education Department, Lahore, Punjab, Pakistan;3. Department of Applied Chemistry, Zhengzhou University of Light Industry, Zhengzhou 450002, China;1. Department of Civil Engineering, Tsinghua University, Beijing, 100084, China;2. China Institute of Building Standard Design and Research, Beijing, 100048, China;1. School of Science, Jiangnan University, WuXi 214122, China;2. Jiangsu Laboratory of Advanced Functional Materials, Department of Physics, Changshu Institute of Technology, Changshu 215500, China;3. National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China
Abstract:The cooling power provided by the current through a superconductor/insulator/superconductor tunnel junction is studied theoretically. The influence of non-equilibrium distributions of the quasi-particles on the heat flow is analysed within a simple relaxation model. A superconducting gap enhancement can be explained within the equilibrium as well as the non-equilibrium model.
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