Published September 1997
| Version v1
Journal article
Non-Arrhenius conductivity in the fast ionic conductor Li0.5La0.5TiO3: Reconciling spin-lattice and electrical-conductivity relaxations
- 1. Departamento de Fisica Aplicada III, Facultad de Ciencias Fisicas, Universidad Complutense de Madrid, Avda, Complutense s/n, 28040 Madrid (Spain)
- 2. Instituto de Ciencia de Materiales de Madrid (CSIC), Cantoblanco, 28049 Madrid (Spain)
- 3. Division de Estudios Superiores (CIDEMAC), Universidad Autonoma de Nuevo Leon, Guerrero y Progreso s/n. Monterrey, Nuevo Leon (Mexico)
Description
Nuclear magnetic resonance and electrical conductivity measurements are conducted to study the dynamics of the ionic diffusion process in the crystalline ionic conductor Li0.5La0.5TiO3. dc conductivity shows a non-Arrhenius 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/τ)β), with β=0.4 over the whole temperature range. copyright 1997 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 56
- Journal Issue
- 9
- Journal Page Range
- p. 5302-5305.
- ISSN
- 0163-1829
- CODEN
- PRBMDO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29008139
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ELECTRIC CONDUCTIVITY; IONIC CONDUCTIVITY; LANTHANUM OXIDES; LITHIUM OXIDES; NUCLEAR MAGNETIC RESONANCE; RELAXATION; SOLID ELECTROLYTES; SPIN-LATTICE RELAXATION; TITANIUM OXIDES
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CHALCOGENIDES; ELECTRICAL PROPERTIES; ELECTROLYTES; LANTHANUM COMPOUNDS; LITHIUM COMPOUNDS; MAGNETIC RESONANCE; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; RESONANCE; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS