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Theory of Nonlinear Meissner Effect in High-Tc Superconductors

Takanobu Jujo
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Abstract

We investigate the nonlinear Meissner effect microscopically. Previous studies did not consider a certain type of interaction effect on the nonlinear phenomena. The scattering amplitude barely appears without being renormalized into the Fermi-liquid parameter. With this effect we can solve the outstanding issues (the quantitative problem, the temperature and angle dependences). The quantitative calculation is performed with use of the fluctuation-exchange approximation on the Hubbard model. It is also shown that the perturbation expansion on the supercurrent by the vector potential converges owing to the nonlocal effect.

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Takanobu Jujo. 2005-04-26. Theory of Nonlinear Meissner Effect in High-Tc Superconductors. https://doi.org/10.1143/jpsj.74.1111

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