Sentences with phrase «of photoelectrons»

Coates et al. (2015) suggested that the presence of photoelectrons in the tail, together with low - energy ions, is possible evidence for a polar wind style escape at Venus, along the draped magnetic field around the planet.

The kinetic energy of these photoelectrons and the angles at which they are ejected are then measured to obtain an electronic spectrum.

But instead of a momentum distribution of N + ions, the scientists studied an interference pattern of photoelectrons that had tunneled from the outer shell of the atom.

Whereas most chiroptical effects result from a response of bound electrons, photoionization can produce much stronger chiral signals that manifest as asymmetries in the angular distribution of the photoelectrons along the light - propagation axis.

In 23 fly - bys which passed through Titan's ionosphere or its magnetic tail, CAPS detected measurable quantities of these photoelectrons up to 6.8 Titan radii away from the moon, because they can easily travel along the magnetic field lines.

It examines the development of a new method that enables scientists to «extract» structural information from spectra of photoelectron scattering in tunneling ionization of an atom or molecule.

Based on the experiences from high - tech industry of photoelectron semiconductor, CHOOSE NanoTech develops many consumer coatings to achieve the best protection with multi-functional properties for different applications.

Not exact matches

These electrons, known as photoelectrons, have a very specific energy of 24.1 electronvolts, which means they can be traced by the CAPS instrument, and easily distinguished from other electrons, as they propagate through the surrounding magnetic field.»

Meanwhile, Franklin Tao, Luan Nguyen and Xiaoyan Zhang of the University of Kansas used ambient pressure X-ray photoelectron spectroscopy to characterize the oxidation state of cerium oxide, which was critical to deriving the mechanism.

The choice of tungsten diselenide as material turned out to be essential: It provides four photoelectron emission channels with different initial state properties and the outstanding stability of the surface enabled long - term data collecting improving the statistical significance.

DeVine et al. used photoelectron spectroscopy to discern the quantum mechanical underpinnings of this 1,2 shift in a prototypical case: conversion of vinylidene (H2CC) to acetylene (HCCH).

Sample imaged using ARPES: Scientists at PGI - 3 used angle - resolved photoelectron spectroscopy (ARPES) to determine the degree of doping in the graphene samples.

In photoelectron holography, instead of a reference wave there are electrons that fly directly to a detector after the process of tunneling ionization.

The time in which the photoelectrons are able to fly «back and forth» in a laser field and return for rescattering on the parent ion is comparable with the length of the optical cycle of the laser (a few femtoseconds).

This achievement, reported in a paper published today in Nature Communications, will enable scientists to use traditional surface - science tools — such as x-ray photoelectron and infrared reflection absorption spectroscopy — to perform detailed studies of single gas atoms in confinement.

In particular, photoelectron spectroscopy with extreme ultraviolet (XUV) radiation is a powerful method to probe the electron density in a valence shell of a molecular system.

«We analyzed the structure of the buffer layer by X-ray photoelectron spectroscopy, transmission electron microscopy, and other techniques.

Using X-ray photoelectron spectroscopy and Fourier transform infrared imaging, the team found carbonyl groups at the tail ends of the polymer chains.

It has a complete array of state - of - the - art laser instruments at its disposal, including a time - resolved photoelectron spectrometer that can generate ultra-short XUV pulses with duration below 45 femtoseconds.

Ionospheric photoelectron peak features are also seen in Saturn's ring ionosphere (Coates et al. 2005) and in the neutral - rich inner magnetosphere of Saturn (Schippers et al. 2009) and they are predicted in Saturn's ionosphere (Galand et al. 2009).

Ionospheric photoelectrons can be used as an important diagnostic tool for the topology of the solar wind interaction with both magnetized and unmagnetized objects (Coates et al. 2011), possibly playing a role also in enhancing the ion escape.

The project also used the expertise of staff and several advanced instruments — environmental transmission and scanning electron microscopes, an X-ray photoelectron spectrometer and a Mössbauer spectrometer — at EMSL, the Environmental Molecular Sciences Laboratory, a DOE Office of Science User Facility at PNNL.

One possible solution, which our team has recently demonstrated for III - V photoelectrodes, is to model speciation of interfacial reaction products by coupling ambient - pressure X-ray photoelectron spectroscopy (XPS) experiments to direct simulations of XPS based on model interfaces from ab initio molecular dynamics.

Using a combination of spectro - photoelectron holography, electrical property measurements, and first - principles dynamics simulations, the 3D atomic structures of dopant impurities in a semiconductor crystal...

He brings a variety of in situ and ex situ characterization methods to bear on the these materials, including high - resolution x-ray and ultraviolet photoelectron spectroscopy, x-ray diffraction, Rutherford backscattering, scanning transmission electron microscopy, electron energy loss spectroscopy, atom probe tomography and scanning probe microscopy.

Their method uses x-rays, in the form of x-ray photoelectron spectroscopy.

The team used temperature - controlled photoelectron spectroscopy in EMSL, the DOE's Environmental Molecular Sciences Laboratory on the PNNL campus, to determine how tightly one cyanide ion and one to three water molecules interact at the very low temperature of -438 °F (12 Kelvin) and again at ambient temperature of 80 °F (equivalent to 300 Kelvin).

High - resolution X-ray photoelectron spectroscopy (XPS) spectra for materials that have been characterized to date are made available here as part of JCAP's Materials Characterization Standards (MatChS) database.

The trapping is confirmed in situ by X-ray photoelectron spectroscopy at modest pressures of only 0.5 mbar (in the presence of X-rays) to trap the Ar atoms.

After a battery sample is characterized in the large glove box, it is transferred without exposure to air to the X-ray photoelectron spectrometer for characterization of surface species.