Doping dependent time-reversal symmetric nonlinearity of YBa_2Cu_3O_7-d thin films

Sheng-Chiang Lee; Steven M. Anlage

doi:10.1016/j.physc.2004.02.117

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Doping dependent time-reversal symmetric nonlinearity of YBa_2Cu_3O_7-d thin films

Sheng-Chiang Lee·Steven M. Anlage

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Abstract

We have measured the temperature dependent third harmonic response from a series of under-doped YBa_2Cu_3O_7-d thin films to address the mechanism of nonlinearity in these samples. We find that the intrinsic Ginzburg-Landau nonlinearity near Tc is doping dependent, with the sample becoming more nonlinear as it is under-doped. The results are consistent with the doping dependence of the condensation energy of YBa_2Cu_3O_7-d.

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Sheng-Chiang Lee, Steven M. Anlage. 2003-06-18. Doping dependent time-reversal symmetric nonlinearity of YBa_2Cu_3O_7-d thin films. https://doi.org/10.1016/j.physc.2004.02.117

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