Very High Resolution Energy Loss Spectroscopy: Applications in Plasmonics

High-energy-resolution monochromator for aberration-corrected scanning transmission electron microscopy/electron energy-loss spectroscopy.

An all-magnetic monochromator/spectrometer system for sub-30 meV energy-resolution electron energy-loss spectroscopy in the scanning transmission electron microscope is described. It will link the energy being selected by the monochromator to the energy being analysed by the spectrometer, without resorting to decelerating the electron beam. This will allow it to attain spectral energy stability...

Data processing for atomic resolution electron energy loss spectroscopy.

The high beam current and subangstrom resolution of aberration-corrected scanning transmission electron microscopes has enabled electron energy loss spectroscopy (EELS) mapping with atomic resolution. These spectral maps are often dose limited and spatially oversampled, leading to low counts/channel and are thus highly sensitive to errors in background estimation. However, by taking advantage o...

Electronic States of Chromium Carbene Ions Characterized by High-resolution Translational Energy Loss Spectroscopy

Rapid progress in experimental methodology has made it possible to generate and study highly reactive organometallic fragments in the gas phase. While experimental investigations have focused mainly on the reactivity and thermochemical stability of such species [l-7], parallel developments in ab initio theory have provided descriptions of the molecular and electronic structures of these molecul...

High resolution electron energy loss spectroscopy of MnO(100) and oxidized MnO(100)

High-resolution electron energy loss spectroscopy study of O-Cu(410).

We have investigated oxygen adsorption on Cu(410) by high-resolution electron energy loss spectroscopy, dosing O2 with a supersonic molecular beam at different surface temperatures and for different angles of incidence and beam energies or by backfilling. In the investigated crystal temperature range (127 < T < 570 K), adsorption is always dissociative. Depending on T, impact energy, and angle ...