Selective coupling of coherent phonons to intertwined charge-orbital and magnetic orders in doped manganites

@misc{liu2026selective,
  title = {{Selective coupling of coherent phonons to intertwined charge-orbital and magnetic orders in doped manganites}},
  author = {X. Liu and M. Sander and S. -W. Huang and S. Zerdane and A. Caviezel and M. Rössle and J. Lu and D. Babich and S. Shin and E. Pomjakushina and P. Marsik and L. Wang and S. W. Cheong and C. Jia and P. Beaud and H. T. Lemke and U. Staub and R. Mankowsky},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.12199},
  eprint = {2609.12199},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.12199},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - Selective coupling of coherent phonons to intertwined charge-orbital and magnetic orders in doped manganites
AU  - X. Liu
AU  - M. Sander
AU  - S. -W. Huang
AU  - S. Zerdane
AU  - A. Caviezel
AU  - M. Rössle
AU  - J. Lu
AU  - D. Babich
AU  - S. Shin
AU  - E. Pomjakushina
AU  - P. Marsik
AU  - L. Wang
AU  - S. W. Cheong
AU  - C. Jia
AU  - P. Beaud
AU  - H. T. Lemke
AU  - U. Staub
AU  - R. Mankowsky
PY  - 2026
DA  - 2026/09/10
PB  - arXiv
DO  - 10.48550/arxiv.2609.12199
UR  - https://arxiv.org/abs/2609.12199
AB  - Strongly correlated materials feature technologically relevant functionalities such as high-temperature superconductivity and colossal magnetoresistance, which emerges from the competition and coexistence of electronic and magnetic phases. Uncovering the microscopic interactions underlying these phenomena remains challenging because spin, orbital, charge, and lattice degrees of freedom are inherently intertwined. Here, by combining time-resolved X-ray diffraction and polarization-resolved ultrafast optical reflectivity in La1/4Pr3/8Ca3/8MnO3, we reveal that coherent phonon modes can selectively track different ordered phases: the in-plane phonon response is predominantly sensitive to charge/orbital order, and the c-axis phonon response is sensitive to magnetic order. Moreover, a ferromagnetic-related hysteresis emerges even when solely probing the charge/orbital-ordered phase, indicating a strong microscopic coupling between the spatially separated charge/orbital-ordered and ferromagnetic-ordered phases. These results demonstrate that coherent phonons provide a direct time-domain route to disentangle intertwined electronic and magnetic dynamics in coupled phases.
ER  -