Results 11 to 20 of about 243,770 (263)

Core-level photoemission spectroscopy of nitrogen bonding in GaNxAs1–x alloys [PDF]

open access: yes, 2004
The nitrogen bonding configurations in GaNxAs1–x alloys grown by molecular beam epitaxy with 0.07=0.03, the nitrogen is found to exist in a single bonding configuration – the Ga–N bond; no interstitial nitrogen complexes are present.
C. F. McConville   +5 more
core   +1 more source

Photoelectron Spectroscopy for Chemical Analysis

open access: yesCHIMIA, 2015
Photoelectron spectroscopy started its modern development in the fifties based on techniques for studies of nuclear decay. Since then, photoelectron spectroscopy has undergone a dramatic expansion of application and is now a prime research tool ...
Håkan Rensmo, Hans Siegbahn
doaj   +1 more source

An X-ray photoelectron spectroscopy study of uranyl-chitosan interaction [PDF]

open access: yesNuclear Technology and Radiation Protection, 2008
An X-ray photoelectron spectroscopy study of uranium sorption by spherically-granulated chitosan in sulphate solutions, as well as the study of the nature of the U(VI) - chitosan interaction was carried out in this work.
Veleshko Alexander N.   +6 more
doaj   +1 more source

Characterization of Ti/SnO2 Interface by X-ray Photoelectron Spectroscopy

open access: yesNanomaterials, 2022
The Ti/SnO2 interface has been investigated in situ via the technique of x-ray photoelectron spectroscopy. Thin films (in the range from 0.3 to 1.1 nm) of titanium were deposited on SnO2 substrates via the e-beam technique. The deposition was carried out
Miranda Martinez, Anil R. Chourasia
doaj   +1 more source

Chirped Attosecond Photoelectron Spectroscopy

open access: yesPhysical Review Letters, 2006
We study analytically the photoionization of a coherent superposition of electronic states and show that chirped pulses can measure attosecond time scale electron dynamics just as effectively as transform-limited attosecond pulses of the same bandwidth.
Yudin, G. L.   +2 more
openaire   +3 more sources

Time-dependent photoionization of azulene: Competition between ionization and relaxation in highly excited states [PDF]

open access: yes, 2008
Pump-probe photoionization has been used to map the relaxation processes taking place from highly vibrationally excited levels of the S2 state of azulene, populated directly or via internal conversion from the S4 state.
Blanchet, V.   +7 more
core   +6 more sources

Structure, bonding and morphology of hydrothermally synthesised xonotlite [PDF]

open access: yes, 2009
The authors have systematically investigated the role of synthesis conditions upon the structure and morphology of xonotlite. Starting with a mechanochemically prepared, semicrystalline phase with Ca/Si=1, the authors have prepared a series of xonotlite ...
A. Stumm   +19 more
core   +1 more source

Recent advances in experimental techniques to probe fast excited-state dynamics in biological molecules in the gas phase : dynamics in nucleotides, amino acids and beyond [PDF]

open access: yes, 2013
In many chemical reactions, an activation barrier must be overcome before a chemical transformation can occur. As such, understanding the behaviour of molecules in energetically excited states is critical to understanding the chemical changes that these ...
Hadden DJ   +6 more
core   +1 more source

Time-resolved photoelectron spectroscopy of proton transfer in the ground state of chloromalonaldehyde: Wave-packet dynamics on effective potential surfaces of reduced dimensionality [PDF]

open access: yes, 2006
We report on a simple but widely useful method for obtaining time-independent potential surfaces of reduced dimensionality wherein the coupling between reaction and substrate modes is embedded by averaging over an ensemble of classical trajectories ...
Arasaki, Yasuki   +4 more
core   +1 more source

High-Resolution Photoelectron Spectroscopy and ab initio Quantum Chemistry

open access: yesCHIMIA, 2004
The resolution that can be achieved by photoelectron spectroscopy has been continually improved over the past 50 years and is now sufficiently high for the rovibronic energy level structure of polyatomic molecular cations to be measured accurately ...
Stefan Willitsch   +2 more
doaj   +1 more source

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