Erratum to: “Lifetime of Positrons in Nanostructured Nonstoichiometric Silver Sulfide Ag2–δS”

Abstract

Page 5, Table 1, row 2 should read: *2 − − − 3.60 ± 0.12 230 ± 10 175 ± 10 219 ± 5 69 ± 6 330 ± 12 31 ± 6 Page 5, left column, last paragraph should read: The lifetime of positrons in silver sulfide samples with different average sizes of nanoparticles was measured at the Institute of Materials Physics, Graz University of Technology (Austria), on a γγ fast—fast coincidence spectrometer using 22NaCl radioactive salt deposited on a 5-μm aluminum foil as a source of positrons. To record the positron annihilation spectra, we prepared a source with an activity of 1−2 MBq, which was placed between two silver sulfide tablets.