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The adsorption of oxygen on the LaB 6 (100) and PrB 6 (100) surfaces has been studied with low energy electron diffraction (LEED) and high resolution electron energy loss spectroscopy (HREELS). Room temperature adsorption of oxygen gives a diffuse c(2 2) LEED pattern and several vibrational loss features with the most intense peak at 35 meV. Upon annealing to 600°C both the c(2 2)...
Energy dispersion curves of the surface phonons of the LaB 6 (111) surface have been measured by using high resolution electron energy loss spectroscopy. We found two large loss peaks and three small loss peaks in the specular spectra and several branches in the off-specular spectra. On the basis of lattice dynamical calculations using bulk parameters, we have obtained the theoretical phonon...
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