中文
相关论文

相关论文: Ultrafast Dynamics for Electron Photodetachment fr…

200 篇论文

Direct measurements of photoexcited carrier dynamics in nickel are made using few-femtosecond extreme ultraviolet (XUV) transient absorption spectroscopy at the nickel M$_{2,3}$ edge. It is observed that the core-level absorption lineshape…

The behavior of liquid water under an electric field is a crucial phenomenon in science and engineering. However, its detailed description at a microscopic level is difficult to achieve experimentally. Here we report on the first ab initio…

软凝聚态物质 · 物理学 2012-05-16 A. Marco Saitta , Franz Saija , Paolo V. Giaquinta

Multi-electron dynamics in atoms and molecules very often occur on sub- to few-femtosecond timescales. The available intensities of extreme-ultraviolet (XUV) attosecond pulses have previously only allowed the time-resolved investigation of…

Ultraviolet irradiation of ice is of great interest for understanding the chemistry in both atmospheric and astrophysical environments. In interstellar space, photodissociation of H2O molecules can be a driving force behind the chemistry on…

天体物理学 · 物理学 2016-08-30 Stefan Andersson , Geert-Jan Kroes , Ewine F. van Dishoeck

The ultrafast electronic structures of the charge density wave material 1T-TiSe$_2$ were investigated by high-resolution time- and angle-resolved photoemission spectroscopy. We found that the quasiparticle populations drove ultrafast…

Highly intense, sub-picosecond terahertz (THz) pulses can be used to induce ultrafast temperature jumps (T-jumps) in liquid water. A supercritical state of gas-like water with liquid density is established, and the accompanying structural…

化学物理 · 物理学 2019-01-24 Caroline Arnold , Ludger Inhester , Sergio Carbajo , Ralph Welsch , Robin Santra

The absolute photodetachment cross section of OH- anions at a rotational and translational temperature of 170K is determined by measuring the detachment-induced decay rate of the anions in a multipole radio-frequency ion trap. In comparison…

原子物理 · 物理学 2009-11-13 S. Trippel , J. Mikosch , R. Berhane , R. Otto , M. Weidemüller , R. Wester

Nitrate is an important pollutant in drinking water worldwide, and a number of methods exist for the removal of nitrate from water including ion exchange and reverse osmosis. However, these approaches suffer from a variety of disadvantages…

化学物理 · 物理学 2017-06-20 James W. Palko , Diego I. Oyarzun , Byunghang Ha , Michael Stadermann , Juan G. Santiago

As the simplest nitroaromatic compound, nitrobenzene is an interesting model system to explore the rich photochemistry of nitroaromatic compounds. Previous measurements of nitrobenzene's photochemical dynamics have probed structural and…

Ultrafast laser excitation of a metal causes correlated, highly nonequilibrium dynamics of electronic and ionic degrees of freedom, which are however only poorly captured by the widely-used two-temperature model. Here we develop an…

材料科学 · 物理学 2017-12-06 Pablo Maldonado , Karel Carva , Martina Flammer , Peter M. Oppeneer

The solvated electron represents an elementary quantum system in a liquid environment. Electrons solvated in water have raised strong interest because of their prototypical properties, their role in radiation chemistry, and their relevance…

化学物理 · 物理学 2022-04-15 Michael Woerner , Benjamin P. Fingerhut , Thomas Elsaesser

The cross section of dipole-magnetic photodisintegration of the negative hydrogen ion has been calculated within the framework of an effective-range theory. The dipole-magnetic cross section of photodetachment within the very narrow range…

原子物理 · 物理学 2015-06-17 Arkadiy S. Baltenkov

A subsystem approach for obtaining electron binding energies in the valence region and apply it to the case of halide ions (X$^-$, X = F-At) in water. This approach is based on electronic structure calculations combining the relativistic…

Absorption of ultraviolet radiation by water ice coating interstellar grains can lead to dissociation and desorption of the ice molecules. These processes are thought to be important in the gas-grain chemistry in molecular clouds and…

天体物理学 · 物理学 2009-11-13 S. Andersson , E. F. van Dishoeck

The comprehension of nonadiabatic dynamics in polyatomic systems relies heavily on the simultaneous advancements in theoretical and experimental domains. The gas-phase electron diffraction (GUED) technique has attracted widespread attention…

化学物理 · 物理学 2024-02-15 Jiawei Peng , Hong Liu , Zhenggang Lan

We propose a hydrodynamic model to study the thermotransport properties of semiconductor electrons. From the semiclassical Boltzmann equation a set of balance equations is built for the relevant fields. The electron density, the electron…

统计力学 · 物理学 2009-07-13 A. Rangel-Huerta , M. A. Rodriguez-Meza

In the transient state of d-wave superconductors, we investigate the temporal variation of photoinduced changes in the superfluid weight. We derive the formula that relates the nonlinear response function to the nonequilibrium distribution…

超导电性 · 物理学 2015-10-26 Takanobu Jujo

We studied the dynamics of solvated electrons in the early stage of plasma generation in water induced with an intense femtosecond laser pulse. According to the decay kinetics of solvated electrons, fast recombination process of solvated…

化学物理 · 物理学 2020-12-01 Noritaka Sakakibara , Tsuyohito Ito , Kazuo Terashima , Yukiya Hakuta , Eisuke Miura

In this preprint I propose that the non local discrete-state-in-continuum model previously successfully used to describe the inelastic electron molecule collisions can also be used to model the electron photo-detachment from the molecular…

化学物理 · 物理学 2023-09-13 Martin Čížek

Dissociative electron attachment, that is, the cleavage of chemical bonds induced by low-energy electrons, is difficult to model with standard quantum-chemical methods because the involved anions are not bound but subject to autodetachment.…

化学物理 · 物理学 2022-10-03 Jerryman A. Gyamfi , Thomas -C. Jagau