Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Anomalous lattice relaxation dynamics in optimally doped La2โˆ’xSrxCuO4

Petsch, A. N. ; Shen, L. LU ; Porter, Z. ; Alshemi, A. LU orcid ; Stellhorn, A. LU ; Israelski, A. ; Peng, C. ; Yavas, H. ; Thampy, V. and Arthur, R. J. , et al. (2025) In Physical Review B 112(10).
Abstract
The atomic lattice plays a critical role in the emergence of high-๐‘‡๐‘ 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 dynamics to the superconducting state. Notably, an anomaly emerges around ๐‘‡๐‘: upon cooling into the superconducting state, the average atomic relaxation lifetime decreases, i.e., dynamics accelerate. This indicates a significant change in the local disorder-induced strain field dynamics at the superconducting transition,... (More)
The atomic lattice plays a critical role in the emergence of high-๐‘‡๐‘ 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 dynamics to the superconducting state. Notably, an anomaly emerges around ๐‘‡๐‘: upon cooling into the superconducting state, the average atomic relaxation lifetime decreases, i.e., dynamics accelerate. This indicates a significant change in the local disorder-induced strain field dynamics at the superconducting transition, highlighting a remarkable coupling between superconductivity and the lattice on quasistatic timescales. (Less)
Please use this url to cite or link to this publication:
@article{f23f9f09-af26-4c6e-bec7-72c852fa0d43,
  abstract     = {{The atomic lattice plays a critical role in the emergence of high-๐‘‡<sub>๐‘</sub> 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 dynamics to the superconducting state. Notably, an anomaly emerges around ๐‘‡<sub>๐‘</sub>: upon cooling into the superconducting state, the average atomic relaxation lifetime decreases, i.e., dynamics accelerate. This indicates a significant change in the local disorder-induced strain field dynamics at the superconducting transition, highlighting a remarkable coupling between superconductivity and the lattice on quasistatic timescales.}},
  author       = {{Petsch, A. N. and Shen, L. and Porter, Z. and Alshemi, A. and Stellhorn, A. and Israelski, A. and Peng, C. and Yavas, H. and Thampy, V. and Arthur, R. J. and Ren, Z. and Westermeier, F. and Sprung, M. and Hayden, S. M. and Blackburn, E. and Turner, Joshua J.}},
  issn         = {{2469-9950}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{10}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review B}},
  title        = {{Anomalous lattice relaxation dynamics in optimally doped La<sub>2โˆ’x</sub>Sr<sub>x</sub>CuO<sub>4</sub>}},
  url          = {{http://dx.doi.org/10.1103/9sg4-52qz}},
  doi          = {{10.1103/9sg4-52qz}},
  volume       = {{112}},
  year         = {{2025}},
}