Femtosecond x rays link melting of charge-density wave correlations and light-enhanced coherent transport in YB a2 C u3 O6.6
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Contributors
Abstract
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.
Details
Original language | English |
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Article number | 184514 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 90 |
Issue number | 18 |
Publication status | Published - 17 Nov 2014 |
Peer-reviewed | Yes |
Externally published | Yes |
External IDs
ORCID | /0000-0001-9862-2788/work/142255367 |
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