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The peculiarities of reduction and doping of vanadium oxides probed by TDPAC spectroscopy at ISOLDE

Grant number: 21/06712-9
Support Opportunities:Scholarships abroad - Research
Start date: January 05, 2022
End date: January 20, 2022
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Artur Wilson Carbonari
Grantee:Artur Wilson Carbonari
Host Investigator: Juliana Schell
Host Institution: Instituto de Pesquisas Energéticas e Nucleares (IPEN). Secretaria de Desenvolvimento Econômico (São Paulo - Estado). São Paulo , SP, Brazil
Institution abroad: European Organization for Nuclear Research (CERN), Switzerland  

Abstract

We propose a continuation of the study of intrinsic effects in vanadium oxides. The mechanism of temperature-induced reduction in V2O5 is to be probed by TDPAC spectroscopy with 111mCd probes implanted at ISOLDE. We expect to extract information on the dynamics of oxygen vacancies and identify all the reduction products. In addition, a study of cadmium meta- and pyrovanadates is to be performed in order to elucidate the nature of Cd doping in V2O5. We intend to test the hypothesis that, even at lowconcentrations of the divalent metal, vanadate formation is favored and not substitutionaldoping. (AU)

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