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

  title={Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5},
  author={Roman Mankowsky and Alaska Subedi and Michael F{\"o}rst and Simon Oddsson Mariager and Matthieu Chollet and Henrik T Lemke and Joseph S. Robinson and James Michael Glownia and Michael P. Minitti and Alex Fra{\~n}{\'o} and Michael Fechner and Nicola A. Spaldin and Toshinao Loew and Bernhard Keimer and Antoine Georges and A Cavalleri},
Terahertz-frequency optical pulses can resonantly drive selected vibrational modes in solids and deform their crystal structures. In complex oxides, this method has been used to melt electronic order, drive insulator-to-metal transitions and induce superconductivity. Strikingly, coherent interlayer transport strongly reminiscent of superconductivity can be transiently induced up to room temperature (300 kelvin) in YBa2Cu3O6+x (refs 9, 10). Here we report the crystal structure of this exotic non… CONTINUE READING
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