The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
Open accessAbstract
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-equilibrium state, determined by femtosecond X-ray diffraction and ab initio density functional theory calculations. We find that nonlinear lattice excitation in normal-state YBa2Cu3O6+x at above the transition temperature of 52 kelvin causes a simultaneous increase and decrease in the Cu–O2 intra-bilayer and, respectively, inter-bilayer distances, accompanied by anisotropic changes in the in-plane O–Cu–O bond buckling. Density functional theory calculations indicate that these motions cause drastic changes in the electronic structure. Among these, the enhancement in the character of the in-plane electronic structure is likely to favour superconductivity.
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Metadata
- Authors
- Mankowsky, R., Subedi, A., Först, M., Mariager, S. O., Chollet, M., Lemke, H. T., Robinson, J. S., Glownia, J. M., Minitti, M. P., Frano, A., Fechner, M., Spaldin, N. A., Loew, T., Keimer, B., Georges, A., & Cavalleri, A.
- Venue
- Nature
- Published
- 2014-12
- Volume
- 516
- Issue
- 7529
- Pages
- 71-73
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2003178253
- Cited by
- 511
- References
- 23
- FWCI
- 26.60
- Type
- journal article
- Language
- en
- Open access
- green
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- Mankowsky, R., Subedi, A., Först, M., Mariager, S. O., Chollet, M., Lemke, H. T., Robinson, J. S., Glownia, J. M., Minitti, M. P., Frano, A., Fechner, M., Spaldin, N. A., Loew, T., Keimer, B., Georges, A., & Cavalleri, A. (2014). Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5. Nature. https://doi.org/10.1038/nature13875
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