Positron Annihilation with Electrons of Admixture Atoms in Some Binary Nickel Alloys
A. Baranowski, M. Kostrzewa and M. Szuszkiewicz
aInstitute of Experimental Physics, Wrocław University, pl. Maxa Borna 9, 50-204 Wrocław, Poland
bPhysical Laboratory, Technical University of Opole, Ozimska 75, 45-370 Opole, Poland
cInstitute of Physics, University of Opole, Oleska 48, 45-052 Opole, Poland
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Received: 20 09 2004;
Weighted difference curves have been shortly presented as a proper tool allowing to analyze in another way two-detector Doppler spectra regarding positron annihilation with admixture electrons in some nickel alloys. The analysis of low and middle momentum parts of Doppler spectra for investigated alloys reflects the annihilation of positrons with admixture electrons. There is no distinct signal of annihilations with admixture electrons from the positron lifetime data for well-annealed samples.
DOI: 10.12693/APhysPolA.107.570
PACS numbers:78.70.Bj, 78.30.Er