Radiation-damage produced in BaHfO₃ irradiated with thermal and fast-neutrons
Samples of BaHfO₃ were irradiated with fast and thermal neutrons to produce ^181Hf. Attenuations of the gamma-gamma perturbed angular correlations in ^181Ta were observed, and they may have been caused by the interaction between defects (produced during or after neutron irradiation) and oxygen vacan...
| Autores: | , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 1993 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/60216 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/60216 |
| Access Level: | acceso abierto |
| Palavra-chave: | 538.9 Perturbed angular-correlation Física de materiales Física del estado sólido 2211 Física del Estado Sólido |
| Resumo: | Samples of BaHfO₃ were irradiated with fast and thermal neutrons to produce ^181Hf. Attenuations of the gamma-gamma perturbed angular correlations in ^181Ta were observed, and they may have been caused by the interaction between defects (produced during or after neutron irradiation) and oxygen vacancies. Several defect structures were detected. For one of the structures, an excitation energy of 12 meV was measured, which was attributed to an electron state below the conduction band. The values of the dielectric constant and of the effective electron mass were also deduced. |
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