Results 11 to 20 of about 1,217,265 (323)

A summary of the BARREL campaigns: Technique for studying electron precipitation. [PDF]

open access: yes, 2015
BARREL observed electron precipitation over wide range of energy and timescalesPrecipitating electron distribution is determined using spectroscopy for 19 January 2013 eventBARREL timing data has accuracy within sampling interval of 0.05 ...
Anderson, BR   +8 more
core   +2 more sources

Harmonium: An Ultrafast Vacuum Ultraviolet Facility

open access: yesCHIMIA, 2017
Harmonium is a vacuum ultraviolet (VUV) photon source built within the Lausanne Centre for Ultrafast Science (LACUS). Utilising high harmonic generation, photons from 20–110 eV are available to conduct steady-state or ultrafast photoelectron and
Christopher A. Arrell   +10 more
doaj   +1 more source

Thickness Estimation of Epitaxial Graphene on SiC using Attenuation of Substrate Raman Intensity [PDF]

open access: yes, 2009
A simple, non-invasive method using Raman spectroscopy for the estimation of the thickness of graphene layers grown epitaxially on silicon carbide (SiC) is presented, enabling simultaneous determination of thickness, grain size and disorder using the ...
A.C. Ferrari   +25 more
core   +1 more source

High pressure minerals in the Château-Renard (L6) ordinary chondrite: implications for collisions on its parent body [PDF]

open access: yes, 2018
We report the first discoveries of high-pressure minerals in the historical L6 chondrite fall Château-Renard, based on co-located Raman spectroscopy, scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy and electron backscatter ...
Anand, Mahesh   +7 more
core   +2 more sources

Ballistic electron spectroscopy

open access: yes, 2006
We demonstrate the feasibility of ballistic electron spectroscopy as a new tool for mesoscopic physics. A quantum dot is utilised as an energy-selective detector of non-equilibrium ballistic electrons injected into a two-dimensional electron system.
Griffiths, J. P.   +4 more
core   +1 more source

Insight into Solvent Coordination of an Iron Porphyrin Hydroxylamine Complex from Spectroscopy and DFT Calculations [PDF]

open access: yes, 2018
The reduction of Fe(OEP)(NO) in the presence of substituted phenols leads to a three‐electron reduction to form Fe(OEP)(NH2OH), which has been characterized by visible spectroscopy and electron stoichiometry.
Rahman, Md. Hafizur, Ryan, Michael D.
core   +2 more sources

Creating stable Floquet–Weyl semimetals by laser-driving of 3D Dirac materials

open access: yesNature Communications, 2017
Creating and controlling topological states of matter has become a central goal in condensed matter physics. Here, the authors report a predictive Floquet engineering of various topological phases in Na3Bi by using femtosecond laser pulses.
Hannes Hübener   +4 more
doaj   +1 more source

Electronic Spectroscopy of Isolated DNA Polyanions

open access: yes, 2018
In solution, UV-vis spectroscopy is often used to investigate structural changes in biomolecules (i.e., nucleic acids), owing to changes in the environment of their chromophores (i.e., the nucleobases).
Daly, Steven   +3 more
core   +2 more sources

Calculation of Electron Impact Single Ionization TDCS of Tungsten Atoms at 200, 500 and 1000 eV

open access: yesAtoms, 2021
We report triple differential cross-sections (TDCSs) for the electron impact single ionization of tungsten atoms for the ionization taking place from the outer sub shells of tungsten atoms, viz. W (6s), W (5d), W (5p) and W (4f).
Ghanshyam Purohit
doaj   +1 more source

Direct and Simultaneous Observation of Ultrafast Electron and Hole Dynamics in Germanium [PDF]

open access: yes, 2017
Understanding excited carrier dynamics in semiconductors is crucial for the development of photovoltaics and efficient photonic devices. However, overlapping spectral features in optical/NIR pump-probe spectroscopy often render assignments of separate ...
Borja, Lauren J.   +12 more
core   +3 more sources

Home - About - Disclaimer - Privacy