نتایج جستجو برای: auger electron spectroscopy
تعداد نتایج: 450078 فیلتر نتایج به سال:
We describe studies of the debris produced from a high–repetition-rate laser plasma EUVL source based on the mass-limited target concept. In particular, we are developing mass-limited target designs based on complex targets containing tin. Comprehensive analysis of witness-plate detection techniques can reveal many interesting details of the interaction regime, and the impact of the debris. The...
By means of Auger electron spectroscopy (AES) we have monitored the room temperature adsorption of 02 and N20 on the clean Si(0 0 1)2 x I surface. We have found, for the first time, a significant variation in the intensity ratio of the K Lt L~ and K L23 L23 O Auger lines in the submonolayer range. This variation can be related to a change in bonding configuration of the oxygen atom/molecule in ...
This paper deals with the morphology and surface chemistry of faceted voids existing in singlequasicrystalline icosahedral Al70 5Pd2i.0Mn8 5. By observation with a scanning electron microscope of surfaces obtained by cleavage of the quasicrystal, the habit planes of the dodecahedral voids were identified. The chemical surface composition of the void surface was determined by Auger electron spec...
We have used cold target recoil ion momentum spectroscopy to study the continuum correlation between the photoelectron of core-photoionized neon and the subsequent Auger electron. We observe a strong angular correlation between the two electrons. Classical trajectory Monte Carlo calculations agree quite well with the photoelectron energy distribution that is shifted due to the potential change ...
Introduction: Presolar grains have isotopic compositions that clearly identify them as stellar condensates which survived prolonged residency in the interstellar medium before being incorporated into Solar System materials. Many such grains are first identified during in situ isotope imaging searches in various types of primitive extraterrestrial materials. To constrain a given particle’s possi...
Layered, binary thin-film oxides of NiO, MgO and CaO have been prepared and characterized using low energy electron diffraction, Auger electron spectroscopy, energy loss spectroscopy, ion scattering spectroscopy, and temperature programmed desorption using probe molecules. Epitaxial growth was observed for the NiO–MgO and CaO–NiO systems; however, superior wetting was found for NiO–MgO relative...
Spin selectivity in angle-resolved Auger photoelectron coincidence spectroscopy (AR-APECS) is used to probe electron correlation in ferromagnetic thin films. In particular, exploiting the AR-APECS capability to discriminate Auger electron emission events characterized by valence hole pairs created either in the high or in the low total spin state, a strong correlation effect in the Fe M(2,3)VV ...
Interface properties of cobalt(II) phthalocyanine (CoPc) and cobalt(II) hexadecafluoro-phthalocyanine (CoPcF16) to gold are investigated by photo-excited electron spectroscopies (X-ray photoemission spectroscopy (XPS), ultraviolet photoemission spectroscopy (UPS) and X-ray excited Auger electron spectroscopy (XAES)). It is shown that a bidirectional charge transfer determines the interface ener...
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