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Femtosecond x rays link melting of charge-density wave correlations and light-enhanced coherent transport in YBa2Cu3O6.6

DOI: 10.1103/PhysRevB.90.184514 DOI Help

Authors: M. Forst (Max-Planck Institute for the Structure and Dynamics of Matter) , A. Frano (Max Planck Institute for Solid State Research) , S. Kaiser (Max Planck Institute for the Structure and Dynamics of Matter) , R. Mankowsky (Max Planck Institute for the Structure and Dynamics of Matter) , C. R. Hunt (Max Planck Institute for the Structure and Dynamics of Matter) , J. J. Turner (Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory) , G. L. Dakovski (Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory) , M. P. Minitti (Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laboratory) , J. Robinson (Linac Coherent Light Source, Stanford Linear Accelerator Center (SLAC) National Accelerator Laborator) , T. Loew (Max-Planck Institute for Solid State Research) , M. Le Tacon (Max-Planck Institute for Solid State Research) , B. Keimer (Max-Planck Institute for Solid State Research) , J. P. Hill (Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory) , A. Cavalleri (Max-Planck Institute for the Structure and Dynamics of Matter; University of Oxford) , S. Dhesi (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review , VOL 90 (18)

State: Published (Approved)
Published: November 2014

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.

Subject Areas: Materials, Physics


Instruments: I06-Nanoscience

Other Facilities: FEL at Stanford LCLS

Added On: 29/11/2014 12:25

Discipline Tags:

Superconductors Quantum Materials Physics Materials Science

Technical Tags:

Diffraction Soft X-ray Diffraction (SXD)