Positron annihilation studies in binary solid solutions of metal betadiketonates, using lifetime and Doppler broadening spectroscopiesReport as inadecuate




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Abstract : Positron annihilation lifetime LS and Doppler broadening annihilation radiation lineshape DBARL spectroscopies measurements were performed in several binary solid solutions of the general formula M1-xGxL3 where M = Al III, Ga III, or In III, as matrix ; G = Cr III, Mn III, Fe III, Co III, Ru III, Rh III, and Ir III, as guest molecules, L = acetylacetone acac or dipivaloylmethane dpm, and X = guest molecule mole fraction. The studied systems can be classified in two groups : the first one presenting only inhibition of positronium formation and the second one presenting inhibition and quenching effects. The inhibition and quenching constants were determined.





Author: J. Machado A. Porto C. Carvalho W. Magalhaes A. Marques-Netto

Source: https://hal.archives-ouvertes.fr/



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