62 citations · 62 across the 4 of their papers we have counts for
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cond-mat.mtrl-sci2021
Ultrafast generation and detection of propagating coherent acoustic phonon wave packets in ultra-thin iron pnictide films
D. Cheng, B. Song, J. H. Kang +9
We observe pronounced oscillations in differential reflectivity of 9 nm and 60 nm BaFe\textsubscript{2}As\textsubscript{2} (Ba-122) thin films using ultrafast optical spectroscopy.…
cond-mat.mtrl-sci2020
Coherent Band-Edge Oscillations and Dynamic LO Phonon Mode Splitting as Evidence for Polaronic Coupling in Perovskites
Z. Liu, C. Vaswani, L. Luo +12
The coherence of collective modes, such as phonons, and their modulation of the electronic states are long sought in complex systems, which is a cross-cutting issue in photovoltaic…
cond-mat.mtrl-sci2019
Ultrafast Control of Excitonic Rashba Fine Structure by Phonon Coherences in a Metal Halide Perovskite CHNHPbI
Z. Liu, C. Vaswani, X. Yang +14
We discover hidden Rashba fine structure in CHNHPbI and demonstrate its quantum control by vibrational coherence through symmetry-selective vibronic (electron-phonon) c…