Spin-polarized electron energy loss

SPEELS Spin polarized electron energy-loss spectroscopy... 

R., Etzkorn, M., Kumar, P.S.A., and Kirschner, J. (2003) A novel spectrometer for spin-polarized electron energy-loss spectroscopy. Rev. Sci. Instrum., 74, 4089. 

Fig. 3. Electron energy loss spectra of NiO(IOO) surfaces. Lower panel clean NiO(lOO) surfaces, UHV-cleaved single crystal. The assignment of the features according to theory is given and supported by spin polarized measurements [44, 45]. Upper panel adsorbate covered NiO(lOO) films. Lower trace defects OH saturated, before NO adsorption upper trace after adsorption of NO [40].

The electronic state calculation by discrete variational (DV) Xa molecular orbital method is introduced to demonstrate the usefulness for theoretical analysis of electron and x-ray spectroscopies, as well as electron energy loss spectroscopy. For the evaluation of peak energy. Slater s transition state calculation is very efficient to include the orbital relaxation effect. The effects of spin polarization and of relativity are argued and are shown to be important in some cases. For the estimation of peak intensity, the first-principles calculation of dipole transition probability can easily be performed by the use of DV numerical integration scheme, to provide very good correspondence with experiment. The total density of states (DOS) or partial DOS is also useful for a rough estimation of the peak intensity. In addition, it is necessary lo use the realistic model cluster for the quantitative analysis. The... 

SEELES SEXAES SIMS SPLEED Surface Electron Energy Loss Fine Structure Surface Extended X-ray Absorption Fine Sfructure Secondary Ion Mass Spectroscopy Spin-Polarized LEED ... 

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