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Título:
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Non-Arrhenius conductivity in the fast ionic conductor Li_(0.05)La_(0.5)TiO_(3): reconciling spin-lattice and electrical-conductivity relaxations
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Autores:
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León Yebra, Carlos ;
Santamaría Sánchez-Barriga, Jacobo ;
París, M. A. ;
Sanz, J. ;
Ibarra, J. ;
Torres, L. 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, 1997-09-01
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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: Electricidad
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Materia = Ciencias: Física: Electrónica
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Tipo = Artículo
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Resumen:
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Nuclear magnetic resonance and electrical conductivity measurements are conducted to study the dynamics of the ionic diffusion process in the crystalline ionic conductor Li_(0.05)La_(0.5)TiO_(3). dc conductivity shows a nonArrhenius temperature dependence, similar to the one recently reported for some ionic conducting glasses. Spin-lattice and conductivity relaxations are analyzed in the same frequency and temperature range in terms of the non-Arrhenius dependence of the correlation time. Both relaxations are then described using a single correlation function of the form f(t)=exp(-(t/?)^(?)), with ?=0.4 over the whole temperature range.
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En línea:
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https://eprints.ucm.es/id/eprint/31234/1/LeonC124libre.pdf
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