
Jean-Marc Triscone awarded a honorary doctorate
by the Norwegian University of Science and Technology (NTNU)
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3rd Q-MAC symposium in Venice, May 22-25, 2018.
Next regular meeting in Paris, November 27-28, 2018.
Read morePublication Detail / Abstract
Femtosecond x rays link melting of charge-density wave correlations and light-enhanced coherent transport in YBa2Cu3O6.6
published in Physical Review B on November 17, 2014
> Full text via publisher
We use femtosecond resonant soft x-ray diffraction to measure the optically stimulated ultrafast changes of charge-density wave correlations in underdoped YBa2Cu3O6.6. We find that when coherent interlayer transport is enhanced by optical excitation of the apical oxygen distortions, at least 50% of the in-plane charge-density wave order is melted. These results indicate that charge ordering and superconductivity may be competing up to the charge ordering transition temperature, with the latter becoming a hidden phase that is accessible only by nonlinear phonon excitation.
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