Título:
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Temperature-dependence of the hyperfine interaction in the cubic phase of BaHfO?
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Autores:
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Lopez García,, A. R. ;
Presa Muñoz del Toro, Patricia de la ;
Rodiguez, A. M.
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 1991-11-01
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física de materiales
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Materia = Ciencias: Física: Física del estado sólido
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Tipo = Artículo
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Resumen:
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The temperature dependence of the hyperfine interaction in the paraelectric phase of BaHfO? in the temperature range from liquid-nitrogen temperature to 1350 K has been studied. The experimental results show an Abragam-Pound mechanism for the attenuation of the angular correlation. In this cubic structure the attenuation would be consistent with a relaxation mechanism that involves O-ion hopping between vacant sites in the lattice. Using the point-charge model for the estimation of the electric field gradient produced by an O vacancy in the coordination sphere of the probe ion, the process is characterized by a correlation time ?_(c) = 12 ± 1 ps at RT.
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En línea:
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https://eprints.ucm.es/45643/1/DeLaPresaP%2022%20libre.pdf
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