Phonon - Wikipedia
A phonon is a collective excitation in a periodic, elastic arrangement of atoms or molecules in condensed matter, specifically in solids and some liquids. A type of quasiparticle in physics, [1] …
Observation of phonon Stark effect | Nature Communications
2024年5月29日 · A Stark phonon appears as the interlayer excitons are tuned to resonate with the LA phonon emission line, and shows a linear energy shift upon application of an out-of-plane …
Theory of coherent phonons coupled to excitons | npj 2D ... - Nature
2024年6月20日 · We here lay down the microscopic theory of coherent phonons interacting with resonantly pumped bright excitons and provide the explicit expression of the corresponding …
Exciton-acoustic phonon coupling revealed by resonant excitation …
2021年4月13日 · These acoustic phonons are indispensable in assisting the detuned laser excitation of a single CsPbI 3 NC, allowing us to resolve an ultranarrow PL excitation linewidth …
Mechanisms of electron-phonon coupling unraveled in …
The complex coupling between charge carriers and phonons is responsible for diverse phenomena in condensed matter. We apply ultrafast electron diffuse scattering to unravel …
Imaging Phonon Excitation with Atomic Resolution | Science
2008年2月15日 · We explain the atomic resolution in d 2 I/dV 2 maps by a lateral variation in the probability of surface phonon excitations. Lastly, we discuss the influence of different stacking …
Modulating Thermal Conductivity via Targeted Phonon Excitation
2024年5月13日 · Here, a quantum modulation strategy is proposed to modulate the thermal conductivity/heat flux by exciting targeted phonons. It shows that the thermal conductivity of …
Photovoltaic effect by soft phonon excitation - PNAS
2022年3月28日 · We demonstrate the photocurrent through the optical phonon excitations in ferroelectric BaTiO 3 by using the terahertz light with photon energy far below the band gap. …
Giant acceleration of polaron transport by ultrafast laser-induced ...
2023年8月16日 · Here, we show that laser-controlled coherent phonon excitation enables orders of magnitude enhancement of carrier mobility via accelerating polaron transport in a …
Enhancement of ion diffusion by targeted phonon excitation
2021年5月19日 · Targeted phonon excitation raises diffusivity without raising the bulk temperature Avenue for increasing diffusivity by phonon engineering without changing chemistry Summary