Suchergebnisse

The paper reports the results of an experimental study of sputtering of a polycrystalline CuPt alloy
irradiated with Ar+ ions with energies of 20 keV and 80 keV. The sputtering yield of the alloy was
measured using Rutherford backscattering of He+ ions with an energy of 2 MeV. It is found that the
sputtering yield of the alloy is less than the corresponding value for Cu, but higher than the value for
Pt. The results are discussed in the framework of modern concepts about the preferential sputtering
of multicomponent materials.

Brent 1866, 162: Second brass of Antoninus Pius. Reverse, Rome seated on a military trophy. Weight 296 grains.19 weights - some probably coins from purse but most dotted as if multiple of weight, or ground and quartered.3. 2nd brass of Antoninus Pius. Rev. Rome on military trophy. 296 grns.Catalogue number attributed to nineteen weights from an entry in the catalogue (Payne 1892a, 29). The same catalogue number is asigned to the bronze balance. – D.H.

"XPS results on Mn0.95Dy0.05NiSb Heusler alloy are presented. The compound is single phase with a C1b type cubic structure. All the experimental results suggest that the rare earth atoms entered in the lattice and they are not forming second phases. An exchange splitting of Mn 3s core-level spectrum of about 4.6 eV was shown, giving a direct evidence of the local magnetic moments on Mn sites. The Ni 3d states are giving the major contribution to the XPS valence band spectra. The Ni 3d satellite peak situated around 6 eV was attributed to the fact that the Ni 3d states in the valence band are not fully occupied. However, the Ni 3d band is almost full in this alloy and the Stoner criterion for the existence of a magnetic moment on Ni sites is no longer fulfilled. Keywords: Heusler alloys, X-ray photoelectron spectroscopy, valence band spectra. "