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

Först, Michael; Frano, A.; Kaiser, Stefan; Mankowsky, Roman; Hunt, Cassandra R.; Turner, J. J.; Dakovski, G. L.; Minitti, M. P.; Robinson, J.; Loew, T.; Le Tacon, M.; Keimer, B.; Hill, J. P.; Cavalleri, Andrea; Dhesi, S. S.

doi:10.1103/PhysRevB.90.184514

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Femtosecond x rays link melting of charge-density wave correlations and light-enhanced coherent transport in YBa₂Cu₃O_6.6

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Först, Michael
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free Electron Laser Science, 22761 Hamburg, Germany;

Frano, A.
Solid State Spectroscopy, Max Planck Institute for Solid State Research, Max Planck Society;
Helmholtz-Zentrum Berlin für Materialien und Energie, 12489 Berlin, Germany;

/persons/resource/persons133787

Kaiser, Stefan
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free Electron Laser Science, 22761 Hamburg, Germany;

/persons/resource/persons133845

Mankowsky, Roman
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free Electron Laser Science, 22761 Hamburg, Germany;

/persons/resource/persons133791

Hunt, Cassandra R.
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free Electron Laser Science, 22761 Hamburg, Germany;
Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61802, USA;

/persons/resource/persons133803

Loew, T.
Solid State Spectroscopy, Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons133801

Le Tacon, M.
Solid State Spectroscopy, Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons133799

Keimer, B.
Solid State Spectroscopy, Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons133811

Cavalleri, Andrea
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free Electron Laser Science, 22761 Hamburg, Germany;
Department of Physics, Clarendon Laboratory, University of Oxford;

External Resource

http://dx.doi.org/10.1103/PhysRevB.90.184514
(Publisher version)

http://arxiv.org/abs/1502.05343
(Postprint)

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PhysRevB.90.184514.pdf
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Citation

Först, M., Frano, A., Kaiser, S., Mankowsky, R., Hunt, C. R., Turner, J. J., et al. (2014). Femtosecond x rays link melting of charge-density wave correlations and light-enhanced coherent transport in YBa₂Cu₃O_6.6. Physical Review B, 90(18): 184514. doi:10.1103/PhysRevB.90.184514.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-C341-0

Abstract

We use femtosecond resonant soft x-ray diffraction to measure the optically stimulated ultrafast changes of charge-density wave correlations in underdoped YBa₂Cu₃O_6.6. 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.