Electrical conductivity relaxation and nuclear magnetic resonance of Li conducting Li_(0.5)La_(0.5)TiO_(3)
| dc.contributor.author | León Yebra, Carlos | |
| dc.contributor.author | Lucía Mulas, María Luisa | |
| dc.contributor.author | Santamaría Sánchez-Barriga, Jacobo | |
| dc.contributor.author | París, M. A. | |
| dc.contributor.author | Sanz, J. | |
| dc.contributor.author | Várez, A. | |
| dc.date.accessioned | 2023-06-20T20:08:33Z | |
| dc.date.available | 2023-06-20T20:08:33Z | |
| dc.date.issued | 1996-07-01 | |
| dc.description | © 1996 The American Physical Society. | |
| dc.description.abstract | Lithium ionic conductivity of Li_(0.5)La_(0.5)TiO_(3) has been studied using nuclear magnetic resonance (NMR) and admittance spectroscopy (AS) techniques. Spin-lattice relaxation and electrical conductivity relaxation are well described in terms of stretched-exponential correlation functions in the time domain of the form φ(t) = exp(-(t/τ) (β), but showing different relaxation times scales (τ_(0) = 1.4 x 10^(-11) s from NMR and τ_(0) = 10^(-14) s from AS), and activation energies (0.15 and 0.4 eV, respectively). Different β exponents, 1 from spin lattice relaxation and 0.4 from electric-field relaxation have been also deduced. A microscopic activation energy for lithium motion of 0.15 eV is deduced from both techniques. Discrepancies between both techniques are analyzed and discussed in terms of frequency-dependent correlation effects. | |
| dc.description.department | Depto. de Estructura de la Materia, Física Térmica y Electrónica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/31276 | |
| dc.identifier.doi | 10.1103/PhysRevB.54.184 | |
| dc.identifier.issn | 1098-0121 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1103/PhysRevB.54.184 | |
| dc.identifier.relatedurl | http://journals.aps.org/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/59660 | |
| dc.issue.number | 1 | |
| dc.journal.title | Physical review B | |
| dc.language.iso | eng | |
| dc.page.final | 189 | |
| dc.page.initial | 184 | |
| dc.publisher | American Physical Society | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 537 | |
| dc.subject.keyword | Ionic-conductivity | |
| dc.subject.keyword | Glasses | |
| dc.subject.keyword | Behavior. | |
| dc.subject.ucm | Electricidad | |
| dc.subject.ucm | Electrónica (Física) | |
| dc.subject.unesco | 2202.03 Electricidad | |
| dc.title | Electrical conductivity relaxation and nuclear magnetic resonance of Li conducting Li_(0.5)La_(0.5)TiO_(3) | |
| dc.type | journal article | |
| dc.volume.number | 54 | |
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| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 213f0e33-39f1-4f27-a134-440d5d16a07c | |
| relation.isAuthorOfPublication | 83f99fc6-abdc-4870-9040-a54cfb6fd5bf | |
| relation.isAuthorOfPublication | 75fafcfc-6c46-44ea-b87a-52152436d1f7 | |
| relation.isAuthorOfPublication.latestForDiscovery | 213f0e33-39f1-4f27-a134-440d5d16a07c |
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