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Spectroscopic Characterization of Mixed Fe−Ni
... There are reports of mixed metal oxides with oxygen evolution reactivities that are superior to that of either of the parent metal oxides. Mixed Ni−Fe oxide catalysts have been shown to be of particular interest because of the lower overpotential of reaction and the stable activity. Corrigan et al. ...
... There are reports of mixed metal oxides with oxygen evolution reactivities that are superior to that of either of the parent metal oxides. Mixed Ni−Fe oxide catalysts have been shown to be of particular interest because of the lower overpotential of reaction and the stable activity. Corrigan et al. ...
Interferometric measurement of the resonant absorption and
... 780 nm. The first and last absorption dips are from 87Rb and the middle two are from 85Rb. Bottom trace: Light intensity transmitted through a confocal Fabry-Perot cavity with an effective free-spectral range of 378 MHz. K. G. Libbrecht and M. W. Libbrecht ...
... 780 nm. The first and last absorption dips are from 87Rb and the middle two are from 85Rb. Bottom trace: Light intensity transmitted through a confocal Fabry-Perot cavity with an effective free-spectral range of 378 MHz. K. G. Libbrecht and M. W. Libbrecht ...
XeCu Covalent Bonding in XeCuF and XeCuCl, Characterized by
... splitting from Cl (I ) 3/2). Third, the numbers and relative abundances of Xe, Cu, and Cl isotopes were observed in the spectra. Fourth, all transitions assigned to complexes containing 131Xe (I ) 3/ ) showed additional complexity from xenon ...
... splitting from Cl (I ) 3/2). Third, the numbers and relative abundances of Xe, Cu, and Cl isotopes were observed in the spectra. Fourth, all transitions assigned to complexes containing 131Xe (I ) 3/ ) showed additional complexity from xenon ...
INTRODUCTION ...
... radiation) interact primarily with the electrons of a sample, while neutrons interact with the nuclei. The strength of the interaction is very dependent on the particular nuclide involved, isotopes and spin states. Another difference is that the wavelength of the electromagnetic radiation used for R ...
... radiation) interact primarily with the electrons of a sample, while neutrons interact with the nuclei. The strength of the interaction is very dependent on the particular nuclide involved, isotopes and spin states. Another difference is that the wavelength of the electromagnetic radiation used for R ...
Slide 1 - Electrical and Computer Engineering
... However, this might not be well controllable, then one should avoid too high electric field (so atom remains close to substrate surface all the time) and use attractive van der Waals force to pull the atoms. Hla et al., Phys. Rev. B 67, 201402 (2003) ...
... However, this might not be well controllable, then one should avoid too high electric field (so atom remains close to substrate surface all the time) and use attractive van der Waals force to pull the atoms. Hla et al., Phys. Rev. B 67, 201402 (2003) ...
oxford chemistry primers
... which corresponded to the image of the slit at particular wavelengths. Not knowing the explanation for these features, he simply produced a list of the lines, labelling the major ones alphabetically A, B, C .... H. It was many years later (1859) that the correct explananation for these lines was sug ...
... which corresponded to the image of the slit at particular wavelengths. Not knowing the explanation for these features, he simply produced a list of the lines, labelling the major ones alphabetically A, B, C .... H. It was many years later (1859) that the correct explananation for these lines was sug ...
Stability of Organic Cations in Solution
... polycrystalline Au specimen. We collected electrons emitted an angle of both 0° (normal emission) and 60° (grazing emission) from the surface normal. The work function was measured from the threshold energy for the emission of secondary electrons during He I excitation. In the latter case, a negativ ...
... polycrystalline Au specimen. We collected electrons emitted an angle of both 0° (normal emission) and 60° (grazing emission) from the surface normal. The work function was measured from the threshold energy for the emission of secondary electrons during He I excitation. In the latter case, a negativ ...
Spectroscopic and thermodynamic studies charge- transfer
... Iraqi Journal of Science, 2013, Vol 54, Supplement No.4, pp:994-1002 as donating group of electrons on the ring. This lead to increase electron density on pyrimidine ring, hence the electron in electronic pair on nitrogen atom is more active site to transition from HOMO [9]. The dissociation energie ...
... Iraqi Journal of Science, 2013, Vol 54, Supplement No.4, pp:994-1002 as donating group of electrons on the ring. This lead to increase electron density on pyrimidine ring, hence the electron in electronic pair on nitrogen atom is more active site to transition from HOMO [9]. The dissociation energie ...
Order Parameters P2 , P4 , and P6 of Aligned Nematic Liquid
... for characterization of orientation are as follows: (i) for correct determination of order parameter, one needs to know angle χ, or should choose dyes with χ close to zero, and (ii) only ⟨P2⟩ can be determined. EPR spectroscopy (spin probe and spin label method) is rather widely used for study of dy ...
... for characterization of orientation are as follows: (i) for correct determination of order parameter, one needs to know angle χ, or should choose dyes with χ close to zero, and (ii) only ⟨P2⟩ can be determined. EPR spectroscopy (spin probe and spin label method) is rather widely used for study of dy ...
Pulsed Quasi-monochromatic x-ray source for radiography
... The first term in the square bracket in the above equation is a crystal dependent term and the second term is governed by the characteristics of the source and the detector. Further, it can be seen from equation (3) that the resolution Δλ is small for large values of L and h / L. In our set up the s ...
... The first term in the square bracket in the above equation is a crystal dependent term and the second term is governed by the characteristics of the source and the detector. Further, it can be seen from equation (3) that the resolution Δλ is small for large values of L and h / L. In our set up the s ...
Non-specular reflection of convergent beams from Iiquid-solid interface
... solid has been studied in the past for parallel or divergent beams . In a manner analogous to results obtained in optics, we show that an acoustic beam can also exhibit an angular shift when loss is present in the solid and a shift in the focal point when the angle of incidence deviates slightly fro ...
... solid has been studied in the past for parallel or divergent beams . In a manner analogous to results obtained in optics, we show that an acoustic beam can also exhibit an angular shift when loss is present in the solid and a shift in the focal point when the angle of incidence deviates slightly fro ...
Negative photoconductivity due to coherent trapping of electrons in
... Fig. 4. Sample resistance at low bias as a function of THz intensity: saturation of the 2p+1 and the CR transition. The influence of the bias current at constant maximum THz intensity is presented in fig. 5. With increasing bias current the sample resistance in the absence of THz radiation decreases ...
... Fig. 4. Sample resistance at low bias as a function of THz intensity: saturation of the 2p+1 and the CR transition. The influence of the bias current at constant maximum THz intensity is presented in fig. 5. With increasing bias current the sample resistance in the absence of THz radiation decreases ...
this PDF file
... 60:40 acetonitrile:water mixture and the flow rate was 1 ml/min using a UV-detector at wavelengths of 225 and 254 nm. 3. Results and discussion 3.1 X-Ray diffraction XRD patterns (Figure 1) show that the parent silica exhibits an amorphous structure. However, in an Fe-Si catalyst, the iron is well-c ...
... 60:40 acetonitrile:water mixture and the flow rate was 1 ml/min using a UV-detector at wavelengths of 225 and 254 nm. 3. Results and discussion 3.1 X-Ray diffraction XRD patterns (Figure 1) show that the parent silica exhibits an amorphous structure. However, in an Fe-Si catalyst, the iron is well-c ...
Single-exciton spectroscopy of single Mn doped InAs quantum dots
... single Mn doped CdTe.6 The photoluminescence 共PL兲 spectra of a CdTe QD doped with only one Mn atom display six narrow peaks, each of which correspond6,14 to one of the six quantum states of the S = 5 / 2 multiplet formed by the five Mn d electrons15 in Mn2+. Hence, the spin state of the single Mn at ...
... single Mn doped CdTe.6 The photoluminescence 共PL兲 spectra of a CdTe QD doped with only one Mn atom display six narrow peaks, each of which correspond6,14 to one of the six quantum states of the S = 5 / 2 multiplet formed by the five Mn d electrons15 in Mn2+. Hence, the spin state of the single Mn at ...
3D–2D–3D photonic crystal heterostructures fabricated by direct
... (Moore’s law). To some extent today’s electronics also escapes into the third dimension by using many layers of interconnection on a 2D chip. Truly 3D electronic chip circuitry, however, is currently not in sight because of prohibitive heat generation and electrical cross talk. For optical circuits, ...
... (Moore’s law). To some extent today’s electronics also escapes into the third dimension by using many layers of interconnection on a 2D chip. Truly 3D electronic chip circuitry, however, is currently not in sight because of prohibitive heat generation and electrical cross talk. For optical circuits, ...
Cyclo-P3 Complexes of Vanadium: Redox
... (Robin−Day class I mixed-valence system). If it was completely delocalized over both 51V nuclei, then the signal would be split into 16 lines (Robin−Day class III mixed-valence system). However, in our case, the EPR spectrum of 3 does not show either of these cases, but, instead, it resolves into a ...
... (Robin−Day class I mixed-valence system). If it was completely delocalized over both 51V nuclei, then the signal would be split into 16 lines (Robin−Day class III mixed-valence system). However, in our case, the EPR spectrum of 3 does not show either of these cases, but, instead, it resolves into a ...
Clays form a class of technologically important - Eu
... EDS compositional studies have been carried out on bulk and on grains of the samples. For the characterization of the bulk ten measurements, taking care to avoid the iron-rich grains, were performed scanning different areas with dimensions about 800x800 m2. Then the results were obtained using the ...
... EDS compositional studies have been carried out on bulk and on grains of the samples. For the characterization of the bulk ten measurements, taking care to avoid the iron-rich grains, were performed scanning different areas with dimensions about 800x800 m2. Then the results were obtained using the ...
Prediction of silicon-29 nuclear magnetic resonance chemical shifts
... and aluminosilicates (containing insular (Q’) to framework (Q4) Si sites) to predict silicon-29 N M R chemical shifts by means of a group fragment electronegativity sum approach, in which all fragments (e.g., OAl, OLi, O c a ) attached to Si are assigned, on the basis of experiments on a series of m ...
... and aluminosilicates (containing insular (Q’) to framework (Q4) Si sites) to predict silicon-29 N M R chemical shifts by means of a group fragment electronegativity sum approach, in which all fragments (e.g., OAl, OLi, O c a ) attached to Si are assigned, on the basis of experiments on a series of m ...
Organometallic Synthesis and Spectroscopic Characterization of
... any thorough characterization of doped QDs must include convincing structural evidence, or numerous purification steps and control experiments, that determines the location of the dopant atoms from among a number of possibilities: trapped in the matrix containing the sample, bound to the protecting ...
... any thorough characterization of doped QDs must include convincing structural evidence, or numerous purification steps and control experiments, that determines the location of the dopant atoms from among a number of possibilities: trapped in the matrix containing the sample, bound to the protecting ...
Parent Anions of Iron, Manganese, and Nickel Tetraphenyl
... contracted Gaussians, 4 of which have r2 prefactors, 5 p-type contracted Gaussians, and 4 d-type contracted Gaussians. Similar size basis sets were used for the Ni and Mn calculations. For the nitrogen atoms, we used 13 single Gaussians, with decay parameters ranging from 0.094 to 5.18 × 105, to con ...
... contracted Gaussians, 4 of which have r2 prefactors, 5 p-type contracted Gaussians, and 4 d-type contracted Gaussians. Similar size basis sets were used for the Ni and Mn calculations. For the nitrogen atoms, we used 13 single Gaussians, with decay parameters ranging from 0.094 to 5.18 × 105, to con ...
74, 042316 (2006)
... different Rabi pulse areas and different initial states. We have also performed numerical simulations for many other initial states, finding that errors below 10−4 are always achieved. The manipulation errors are even smaller for all other atoms because they have larger detuning ␦共r兲. The relative p ...
... different Rabi pulse areas and different initial states. We have also performed numerical simulations for many other initial states, finding that errors below 10−4 are always achieved. The manipulation errors are even smaller for all other atoms because they have larger detuning ␦共r兲. The relative p ...
Single Particle Spectroscopy Study of Metal-Film
... retardation effects which are known to reduce the resonance frequency for particles with a size that is significant relative to the incident wavelength or the field penetration depth. To verify this, numerical simulations were carried out (not shown) to determine the resonance wavelength of 60 nm di ...
... retardation effects which are known to reduce the resonance frequency for particles with a size that is significant relative to the incident wavelength or the field penetration depth. To verify this, numerical simulations were carried out (not shown) to determine the resonance wavelength of 60 nm di ...
Single Particle Spectroscopy Study of Metal-Film
... retardation effects which are known to reduce the resonance frequency for particles with a size that is significant relative to the incident wavelength or the field penetration depth. To verify this, numerical simulations were carried out (not shown) to determine the resonance wavelength of 60 nm di ...
... retardation effects which are known to reduce the resonance frequency for particles with a size that is significant relative to the incident wavelength or the field penetration depth. To verify this, numerical simulations were carried out (not shown) to determine the resonance wavelength of 60 nm di ...
Mössbauer spectroscopy
![](https://commons.wikimedia.org/wiki/Special:FilePath/Mossbauer_51Fe.png?width=300)
Mössbauer spectroscopy is a spectroscopic technique based on the Mössbauer effect. This effect, discovered by Rudolf Mössbauer in 1957, consists in the recoil-free, resonant absorption and emission of gamma rays in solids.Like NMR spectroscopy, Mössbauer spectroscopy probes tiny changes in the energy levels of an atomic nucleus in response to its environment. Typically, three types of nuclear interactions may be observed: an isomeric shift, also known as a chemical shift; quadrupole splitting; and magnetic or hyperfine splitting, also known as the Zeeman effect. Due to the high energy and extremely narrow line widths of gamma rays, Mössbauer spectroscopy is a very sensitive technique in terms of energy (and hence frequency) resolution, capable of detecting change in just a few parts per 1011.