Migration of vacancies in tantalum and stage III recovery in refractory bcc metals observed by PAC |
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| Affiliation: | Hahn-Meitner-Institut für Kernforschung Berlin GmbH, Bereich Kern- and Strahlenphysik, and Freie Universität Berlin, Fachbereich Physik, D-1000 Berlin, Germany |
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| Abstract: | Annealing of radiation-induced defects in high-purity tantalum was studied by perturbed angular correlation (PAC) between 77 and 380 K. Vacancy migration around 270 K is deduced. From comparison with PAC studies on niobium, molybdenum, and tungsten a highly systematic picture of stage III defects in 111In traps in the refractory bcc metals evolves. |
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