@article{1153585c96c7442a9f4c0b4799748739,
title = "Evidence for photoinduced sliding of the charge-order condensate in La1.875Ba0.125CuO4",
abstract = "We use femtosecond resonant soft x-ray scattering to measure the ultrafast optical melting of charge-order correlations in La1.875Ba0.125CuO4. By analyzing both the energy-resolved and the energy-integrated order-parameter dynamics, we find evidence of a short-lived nonequilibrium state, the features of which are compatible with a sliding charge-density wave coherently set in motion by the pump. This transient state exhibits shifts in both the quasielastic line energy and its wave vector, as expected from a classical Doppler effect. The wave-vector change is indeed found to directly follow the pump propagation direction. These results demonstrate the existence of sliding charge-order behavior in an unconventional charge-density wave system and underscore the power of ultrafast optical excitation as a tool to coherently manipulate electronic condensates.",
author = "Matteo Mitrano and Sangjun Lee and Husain, \{Ali A.\} and Minhui Zhu and Munoz, \{Gilberto De La Pe{\~n}a\} and Sun, \{Stella X.L.\} and Joe, \{Young Il\} and Reid, \{Alexander H.\} and Wandel, \{Scott F.\} and Giacomo Coslovich and William Schlotter and \{Van Driel\}, Tim and John Schneeloch and Gu, \{G. D.\} and Nigel Goldenfeld and Peter Abbamonte",
note = "We acknowledge E. Fradkin, S. A. Kivelson, T. Devereaux, B. Moritz, H. Jang, S. Lee, J.-S. Lee, C. C. Kao, J. Turner, G. Dakovski, and Y. Y. Peng for valuable discussions; D. Swetz for help during the experiments; and S. Zohar for support in data analysis. This work was supported by US Department of Energy (DOE), Office of Basic Energy Sciences Grant No. DE-FG02-06ER46285. Use of the Linac Coherent Light Source, SLAC National Accelerator Laboratory, was supported by DOE Grant No. DE-AC02-76SF00515. Growth of LBCO single crystals was supported by DOE Grant No. DE-SC0012704. M.M. acknowledges support from the Alexander von Humboldt foundation, and P.A. acknowledges support from the Gordon and Betty Moore Foundation EPiQS initiative through Grant No. GBMF-4542.",
year = "2019",
month = nov,
day = "18",
doi = "10.1103/PhysRevB.100.205125",
language = "English (US)",
volume = "100",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "20",
}