| Autor: |
Beck, M., Klammer, M., Rousseau, I., Obergfell, M., Leiderer, P., Helm, M., Kabanov, V. V., Diamant, I., Rabinowicz, A., Dagan, Y., Demsar, J. |
| Rok vydání: |
2016 |
| Předmět: |
|
| DOI: |
10.48550/arxiv.1603.04155 |
| Popis: |
We studied the superconducting (SC) state depletion process in an electron doped cuprate Pr$_{1.85}$Ce$_{0.15}$CuO$_{4-��}$ by pumping with near-infrared (NIR) and narrow-band THz pulses. When pumping with THz pulses tuned just above the SC gap, we find the absorbed energy density required to deplete superconductivity, $A_{dep}$, matches the thermodynamic condensation energy. Contrary, by NIR pumping $A_{dep}$ is an order of magnitude higher, despite the fact that the SC gap is much smaller than the energy of relevant bosonic excitations. The result implies that only a small subset of bosons contribute to pairing. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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