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Anisotropy of the non-equilibrium quasiparticle dynamics in single crystals of YBa2Cu3O7−δ

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Abstract

We report for the first time, measurements of ultrafast transients from YBCO in which the contributions from a- and b-axis response are separately identified using polarised light. A new signal is observed for Ea which has been obscured in all previous thin film experiments. Comparing the two contributions we find the new signal to be sensitive to T c whilst the signal for Eb exhibits pseudogap behaviour.

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Stevens, C., Gay, P., Smith, D. et al. Anisotropy of the non-equilibrium quasiparticle dynamics in single crystals of YBa2Cu3O7−δ . Journal of Low Temperature Physics 117, 1031–1035 (1999). https://doi.org/10.1023/A:1022514021211

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  • DOI: https://doi.org/10.1023/A:1022514021211

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