English

Photo-induced plasmon-phonon coupling in PbTe

Materials Science 2021-09-06 v1

Abstract

We report the observation of photo-induced plasmon-phonon coupled modes in the group IV-VI semiconductor PbTe using Fourier-transform inelastic X-ray scattering at the Linac Coherent Light Source (LCLS). We measure the near-zone-center dispersion of the heavily screened longitudinal optical (LO) phonon branch as extracted from differential changes in x-ray diffuse scattering intensity following above band gap photoexcitation.

Keywords

Cite

@article{arxiv.2109.01301,
  title  = {Photo-induced plasmon-phonon coupling in PbTe},
  author = {M. P. Jiang and M. Trigo and S. Fahy and A. Hauber and É. D. Murray and I Savić and C. Bray and J. N. Clark and T. Henighan and M. Kozina and M. Chollet and J. M. Glownia and M. C. Hoffmann and D. Zhu and O. Delaire and A. F. May and B. C. Sales and A. M. Lindenberg and P. Zalden and T. Sato and R. Merlin and D. A. Reis},
  journal= {arXiv preprint arXiv:2109.01301},
  year   = {2021}
}

Comments

5 pages, 2 figures

R2 v1 2026-06-24T05:38:59.275Z