ArticleNano letters2021
Accessing the Anisotropic Nonthermal Phonon Populations in Black Phosphorus.
Article in Nano letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Synchronous Rotation Dynamics in a Molecular Motor.Journal of the American Chemical Society · 2026Article
- Momentum-Resolved Signatures of Carrier Screening Effects on Electron-Phonon Coupling in MoSACS nano · 2025Article
- Element-specific ultrafast lattice dynamics in FePt nanoparticles.Structural dynamics (Melville, N.Y.) · 2024Article
- Element-Specific Ultrafast Lattice Dynamics in Monolayer WSeNano letters · 2024Article
- Non-thermal phonon dynamics and a quenched exciton condensate probed by surface-sensitive electron diffraction.Nature materials · 2024Article
- Ultrafast electron diffuse scattering as a tool for studying phonon transport: Phonon hydrodynamics and second sound oscillations.Structural dynamics (Melville, N.Y.) · 2024Article
- Nonequilibrium Phonon Dynamics and Its Impact on the Thermal Conductivity of the Benchmark Thermoelectric Material SnSe.ACS nano · 2023Article
- Direct Observation of Ultrafast Lattice Distortions during Exciton-Polaron Formation in Lead Halide Perovskite Nanocrystals.ACS nano · 2023Article
- Article
- Ultrafast lattice dynamics and electron-phonon coupling in platinum extracted with a global fitting approach for time-resolved polycrystalline diffraction data.Structural dynamics (Melville, N.Y.) · 2021Article
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Authors and funding
11 authors.
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Abstract
We combine ultrafast electron diffuse scattering experiments and first-principles calculations of the coupled electron-phonon dynamics to provide a detailed momentum-resolved picture of lattice thermalization in black phosphorus. The measurements reveal the emergence of highly anisotropic nonthermal phonon populations persisting for several picoseconds after exciting the electrons with a light pulse. Ultrafast dynamics simulations based on the time-dependent Boltzmann formalism are supplemented by calculations of the structure factor, defining an approach to reproduce the experimental signatures of nonequilibrium structural dynamics. The combination of experiments and theory enables us to identify highly anisotropic electron-phonon scattering processes as the primary driving force of the nonequilibrium lattice dynamics in black phosphorus. Our approach paves the way toward unravelling and controlling microscopic energy flows in two-dimensional materials and van der Waals heterostructures, and may be extended to other nonequilibrium phenomena involving coupled electron-phonon dynamics such as superconductivity, phase transitions, or polaron physics.
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