Extended power law nonlinear response and amplitude-dependent ac susceptibility of high-T-c superconductors
- Ning, ZH
- Chen, KX
- Yin, L
- Lu, G
- Xu, XL
- Guo, JD
- Wang, FR
- Yin, DL
Publication date
January 2004
DOI Publisher
chinese physics letters ISSN
0256-307X Journal
issn:0256-307XAbstract
We show a nonlinear materials equation of superconductors in the form of an extended power law which can be derived from the Ginzburg-Landau (GL) functional. The critical current J(c) and ac susceptibility chi are analysed by using this equation, and the puzzling question of the increasing height of the out-of-phase susceptibility peak chi''(peak) with increasing amplitude h(ac) is explained.Physics, MultidisciplinarySCI(E)中国科学引文数据库(CSCD)3ARTICLE71340-13432
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