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Evaporation of a Cs overlayer in the submonolayer and monolayer regime on a cleaved GaAs(110) surface has been studied by core-level photoemission spectroscopy. The experimental results show three different adsorption regimes deduced from the lineshape of ...
The uptake of zinc by cerebellar rat cultures upon exposure to ZnCl2 solutions was comparatively investigated using two well known condensed matter physics techniques: synchrotron photoelectron spectromicroscopy and inductively coupled plasma atomic emissi ...
We report a high-resolution core-level spectroscopy study of the (4 x 2)-c(8 x 2) GaAs(100) surface prepared by thermal decapping of surfaces grown by molecular-beam epitaxy. Ga and As 3d core levels are analyzed using very strict parameter conditions, and ...
The electronic properties of amorphous and ion-implanted polycrystalline SnO2 films have been studied using x-ray photoemission spectromicroscopy. First, we analysed the degree of oxidation and the homogeneity of as-deposited films. The SnO and SnO2 phases ...
The incorporation of In in the growth of crescent-shaped In0.12Ga0.88As quantum wires embedded in (AlAs)(4)(GaAs)(8) superlattice barriers is studied in atomic detail using cross-sectional scanning tunneling microscopy. It is found that the In distribution ...
The principles of gallium arsenide diode lasers are described and the history of developments is sketched. The importance of threshold current density is emphasised and it is shown that confinement of carriers is improved in heterojunctions using gallium-a ...
199Hg NMR spectroscopy is used to examine the interaction of the toxic organomercurial ethylmercury phosphate [2235-25-8] with various amino acids. Because of the relative insensitivity of 199Hg and the low concns. of biol. mols., a heteronuclear spin-echo ...
We report a study of the lateral band bending at the Ge-GaSe interface. Spectromicroscopy measurements with synchrotron radiation were performed at the ESCA microscopy line of ELETTRA in Ge patterned films on GaSe substrates. Preliminary results of lateral ...
Expts. are described on the pyrolytic and photolytic laser chem. vapor deposition (LCVD) of Ga and GaAs, as well as hybrid deposition of the latter. Pyrolytic Ga deposits change in shape with laser power variations. A deposit in the shape of an annulus of ...
In this study, we report that intercalation of tin into montmorillonite clay (Sn‐MMT) boosts catalytic activity for the synthesis of polyoxymethylene dimethyl ethers, a promising diesel fuel additive. This increase in activity is attributed to the formatio ...