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arXiv · 1005.4378

Study of higher-order harmonics of complex ac susceptibility in $YB_2C_3O_{7-\delta}$ thin films by the mutual inductive method

Israel Perez·Victor Sosa·Fidel Gamboa
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Abstract

We have applied the mutual inductive method to study higher-order harmonics of complex ac susceptibility $\chi_n=\chi'_n-i\chi"_n$ for $$YB_2C_3O_{7-\delta}$ thin films as function of the temperature and the applied field. The experimental results were compared with analytical and numerical results obtained from the Ishida-Mazaki model and the solution of the integral equation for the current density, respectively. Both models allow us to reproduced the main experimental features, however, as $n$ increases the numerical model shows notable discrepancies. This failure can be attributed to the current-voltage characteristics. Also this investigation yields the activation energy $U_c$ and the critical current density $J_c$ for two samples both at T=0.

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Israel Perez, Victor Sosa, Fidel Gamboa. 2010-05-24. Study of higher-order harmonics of complex ac susceptibility in $YB_2C_3O_{7-\delta}$ thin films by the mutual inductive method. https://doi.org/10.1016/j.physc.2010.09.014

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