Annealing studies combined with low temperature emission Mössbauer spectroscopy of short-lived parent isotopes: Determination of local Debye–Waller factors

An extension of the online implantation chamber used for emission Mossbauer Spectroscopy (eMS) at ISOLDE/CERN that allows quick removal samples offline low temperature studies is briefly described. We demonstrate how eMS data obtained during temperatures between 300 K and 650 short-lived parent isotopes combined with rapid cooling measurements decay isotope can give detailed information on binding properties probe in lattice. This approach has been applied to study Sn impurities ZnO following 119In (T½ = 2.4 min). 4+ 2+ charge states observed. Above T > 600 K, Sn2+ observed ascribed regular Zn sites, while detected < due local amorphous regions. A new annealing stage reported ≈ 550 characterized by changes Sn4+ profile, attributed annihilation close Frenkel pairs.