High temperature P-31 NMR study on Mg2+ ion conductors

Authors
Kawamura, J Morota, K Kuwata, N Nakamura, Y Maekawa, H Hattori, T Imanaka, N Okazaki, Y Adachi, GY
Citation
J. Kawamura et al., High temperature P-31 NMR study on Mg2+ ion conductors, SOL ST COMM, 120(7-8), 2001, pp. 295-298
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098 → ACNP
Volume
120
Issue
7-8
Year of publication
2001
Pages
295 - 298
Database
ISI
SICI code
0038-1098(2001)120:7-8<295:HTPNSO>2.0.ZU;2-S
Abstract
The high temperature P-31 NMR was measured up to 1300 degreesC in a superco nducting magnet for the recently developed Mg2+ ion conductors of the Mg-0. 7(Zr0.85Nb0.15)(4)P6O24 solid solution, Mg1.4Zr4P6O24.4 + 0.4Zr(2)O(PO4)(2) composite and Mg-1.1(Zr0.85Nb0.15)(4)P6O24 + 0.4Zr(2)O(PO4)(2) solid solut ion composite. Line widths of all the samples decreased as the temperature was raised and the longitudinal relaxation time T-1 showed a minimum near 1 000 degreesC. The observed T-1 minimum at high temperature can be well expl ained by the local field fluctuation on the P-31 nucleus due to the fast ju mp motion of Mg2+ ions. (C) 2001 Elsevier Science Ltd. All rights reserved.