Observation of a Sharp Lambda Peak in the Third Harmonic Voltage Response of High-Tc Superconductor Thin Films
نویسندگان
چکیده
In this paper, we report on the sharp peak observed in the third harmonic voltage response generated by a bias sinusoidal current applied to several strips patterned in a YBa2Cu3O7−δ thin film and in two La1−xSrxCuO4 thin films, when the temperature is close to the normal-superconductor transition. The lambda-shaped temperature dependence of the third harmonic signal on the current characteristics is studied. Several physical mechanisms of third harmonic generation are examined. PACS Code/
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