Anomalous lattice relaxation dynamics in optimally doped La2−xSrxCuO4
The atomic lattice plays a critical role in the emergence of high-𝑇𝑐 superconductivity in cuprates. While the dynamics associated with electron-lattice coupling typically unfold on picosecond-to-femtosecond timescales, we present an x-ray photon correlation spectroscopy investigation on an optimally doped La-based cuprate that reveals a strong response of kilosecond-scale lattice relaxation dyna
