Inelastic doping

Figure 5-13. Low binding energy Purl of Ihe Me I UPS spectra ol DHPPV recorded during successive" deposition of calcium. The inset shows the fully doped (one Ca atom per monomer) DltPPV with a simple estimate of the inelastic electron background to emphasize the calcium-induced structures (lixnn Ret. lfifip.

Excitation Eunctions of O2 and 02-Doped Ar Eilms. Resonances can be best identified by the structures they produce in excitation functions of a particular energy-loss process (i.e., the incident-electron energy dependence of the loss). Fig. 7 is reproduced from a recent study [118] of the electron-induced vibrational and electronic excitation of multilayer films of O2 condensed on the Pt(lll) surface and shows the incident electron energy dependence of major losses at the indicated film thickness and scattering angles. Also shown in this figure is the scattered electron intensity of the inelastic background... 

In contrast to the minimal activity in infrared reflection studies the technique of inelastic electron tunneling spectroscopy (IETS) recently has contributed a large amount of information on monolayer adsorption of organic molecules on smooth metal oxide surfaces,Q),aluminum oxide layers on evaporated aluminum. These results indicate that a variety of organic molecules with acidic hydrogens, such as carboxylic acids and phenols chemisorb on aluminum Oxide overlayers by proton dissociation - 1 — and that monolayer coverage can be attained quite repro-ducibly by solution doping techniques. - The IETS technique is sensitive to both infrared and Raman modes. — However, almost no examples exist in which Raman il and or infrared spectra have been taken for an adsorbate/substrate system for which IETS spectra have been observed. 

In LSCO, the basic evidence of (dynamic) stripes comes in the form of the well-known four-fold splitting of magnetic (7r, n) peak, which is observed by inelastic neutron scattering[l], and corroborated by the observation of the elastic response with similar peak pattern in Nd-doped LSCO[2], The above fourfold splitting has been generally interpreted in the stripe community as the... 

F. Fillaux, C. Cachet, S.F. Parker, J. Tomkinson, A. Quivy L.T. Yu (2000). J. Electrochem. Soc., 147, 4184—4188. Inelastic neutron scattering smdies of the proton dynamics in bi-doped manganese oxides. 

B. Francois (1997). Synth. Met., 84, 941-942. Dynamics of pristine and doped conjugated polymers A combined inelastic neutron scattering and computer simulation analysis. 

B. Renker, F. Gompf, H. Schober, P. Adelmann, H.J. Bomemann R. Heid (1993). Z. Phys. B, 92, 451-455. Intermolecular vibrations in pure and doped C o- An inelastic neutron scattering study. 

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