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Non-equilibrium Superconductivity and Quasiparticle Dynamics studied by Photo Induced Activation of Mm-Wave Absorption (PIAMA)

B. J. Feenstra·J. Schuetzmann·D. van der Marel·R. Pérez Pinaya·M. Decroux
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Abstract

We present a study of non-equilibrium superconductivity in DyBa2Cu3O7-d using photo induced activation of mm-wave absorption (PIAMA). We monitor the time evolution of the thin film transmissivity at 5 cm-1 subject to pulsed infrared radiation. In addition to a positive bolometric signal we observe a second, faster, decay with a sign opposite to the bolometric signal for T>40 K. We attribute this to the unusual properties of quasi-particles residing near the nodes of an unconventional superconductor, resulting in a strong enhancement of the recombination time.

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B. J. Feenstra, J. Schuetzmann, D. van der Marel, R. Pérez Pinaya, M. Decroux. 1997-09-01. Non-equilibrium Superconductivity and Quasiparticle Dynamics studied by Photo Induced Activation of Mm-Wave Absorption (PIAMA). https://doi.org/10.1103/physrevlett.79.4890

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