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Kq, Scaling of ac susceptibility and the nonlinear response function of high-temperature superconductors |
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| Authors: | Kaixuan Chen Zhenhua Ning Hengyi Xu Zhi Qi Guo Lu Furen Wang and Daole Yin |
| Institution: | (1) Department of Physics, Peking University, 100871 Beijing, China |
| Abstract: | The amplitude-dependent ac susceptibility of high-temperature superconductors is shown to obey some empirical scaling relations. We try to analyze this behavior by extending a dc nonlinear response function of mixed state to the ac cases. The derived equations for critical current and ac susceptibility ξ(T) agree with the scaling relations of experimental data. |
| Keywords: | high-temperature superconductor ac susceptibility scaling law nonlinear response |
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