| NUKLEONIKA 2013, 58(1):23-26
155Gd ISOMER SHIFTS. THE CASE STUDY: GdT2Si2Kaziemierz £¹tka Jagiellonian University, Marian Smoluchowski Institute of Physics, 4 Reymonta Str., 30-059 Kraków, Poland The experimentally obtained 155Gd Mössbauer effect results in isomer shifts for GdT2Si2 compounds (where T are transition metals for the 3d, 4d and 5d series) are analysed in terms of charge-transfer effects and s, d redistribution by means of the extended Miedema and van der Woude model. The comparison between the theoretically predicted and measured values is discussed. Although these theoretical predictions of isomer shifts are in reasonable agreement with those found in the experiment, nevertheless they do not follow the experimental dependence on T metal acquired for each nd-series. Close X |