Long-lived photoinduced response observed under extreme photoexcitation densities in a one-dimensional Peierls insulator
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PhysRevB.98.054111.pdf
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Author(s)
Shin, Taeho
Katayama, Ikufumi
Kawano, Taro
Takeda, Jun
Wolfson, Johanna W.
Teitelbaum, Samuel Welch
Nelson, Keith Adam
Date Issued
August 2018
Journal
Physical Review B
Publisher
American Physical Society
Citation
Wolfson, Johanna W. et al. "Long-lived photoinduced response observed under extreme photoexcitation densities in a one-dimensional Peierls insulator." Physical Review B 98, 5 (August 2018): 05411 © 2018 American Physical Society
Version
Final published version
Abstract
One-dimensional metal-halide compounds provide model systems to investigate the manner in which coupling between elementary degrees of freedom—here, electronic and vibrational—result in instabilities that give rise to both chemical and structural rearrangements. Here, we employ “single-shot” pump-probe spectroscopy to examine a one-dimensional platinum iodide compound (PtI(en)) under far-from-equilibrium conditions where repeated photoexcitation results in sample damage. It presents evidence for a distinct collective excited state lasting more than 100 ps upon self-trapped exciton generation at high densities, as measured by electronic signal amplitudes and phonon properties.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.98.054111
