Scaling analysis of high temperature superconductors under pressure |
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Authors: | SL Liu B Lü Wang Haiyun HM Shao |
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Institution: | a College of Mathematics and Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, PR China b National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, PR China c College of Sciences, Nanjing University of Technology, Nanjing 210003, PR China |
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Abstract: | The scaling relation of single parameter scaling hypothesis is applied to the study of the scaling behavior of high temperature superconductors under pressure. The data of resistance and specific heat coefficient under various pressures are scaled onto a universal curve according to this scaling relation. The scaling parameters are pressure dependent while temperature independent. It is found that the controlling parameter Bi equals to the relative critical temperature tcP, which indicates that the superconducting energy gap at the zero temperature 2Δs0 is the controlling parameter in this scaling. |
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Keywords: | 74 72 Jt 74 25 Fy 74 62 Fj |
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