Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5

R. Mankowsky (), A. Subedi, M. Först, S. O. Mariager, M. Chollet, H. T. Lemke, J. S. Robinson, J. M. Glownia, M. P. Minitti, A. Frano, M. Fechner, N. A. Spaldin, T. Loew, B. Keimer, A. Georges and A. Cavalleri ()
Additional contact information
R. Mankowsky: Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
A. Subedi: Centre de Physique Théorique, École Polytechnique, CNRS, 91128 Palaiseau Cedex, France
M. Först: Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
S. O. Mariager: Swiss Light Source, Paul Scherrer Institut, 5232 Villigen, Switzerland
M. Chollet: Linac Coherent Light Source, SLAC National Accelerator Laboratory
H. T. Lemke: Linac Coherent Light Source, SLAC National Accelerator Laboratory
J. S. Robinson: Linac Coherent Light Source, SLAC National Accelerator Laboratory
J. M. Glownia: Linac Coherent Light Source, SLAC National Accelerator Laboratory
M. P. Minitti: Linac Coherent Light Source, SLAC National Accelerator Laboratory
A. Frano: Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
M. Fechner: Materials Theory, Eidgenössische Technische Hochschule Zürich, 8093 Zürich, Switzerland
N. A. Spaldin: Materials Theory, Eidgenössische Technische Hochschule Zürich, 8093 Zürich, Switzerland
T. Loew: Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
B. Keimer: Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany
A. Georges: Centre de Physique Théorique, École Polytechnique, CNRS, 91128 Palaiseau Cedex, France
A. Cavalleri: Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany

Nature, 2014, vol. 516, issue 7529, 71-73

Abstract: Femtosecond X-ray diffraction and ab initio density functional theory calculations are used to determine the crystal structure of YBa2Cu3O6.5 undergoing optically driven, nonlinear lattice excitation above the transition temperature of 52 kelvin, under which conditions the electronic structure of the material changes in such a way as to favour superconductivity.

Date: 2014
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DOI: 10.1038/nature13875

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