7li And 31p Nuclear Magnetic Resonance Studies Of Li1-3xmgfexpo4

We report a 7Li and 31P nuclear magnetic resonance (NMR) study in the Li1-3xMgFexPO4 phases between 150 and 410 K. This study, complementary to those made using Mössbauer and magnetic neutron diffraction experiments, confirms that the Fe ions enter as Fe(III) in the lattice, and that they enter substituting Li ions. Ionic conductivity measurements, together with the NMR behavior of the 7Li and 31P NMR spectra show that no Li mobility occurs in the temperature range studied even with the addition of the Fe impurity. © 1998 American Institute of Physics.841416421Kanazawa, T., (1993) Inorganic Phosphate Materials, , Elsevier, TokyoHanic, F., Handlovič, M., Burdová, K., Majling, J., (1982) J. Crystall. Spectrosc. Res., 12, p. 99Kubel, P.K., (1994) Z. Kristallogr., 209, p. 755Megaw, H.D., (1973) Crystal Structures - A Working Approach, p. 249. , Saunders, PhiladelphiaMuller, O., Roy, R., The Major Ternary Structural Families (1974) Crystal Chemistry of Non-Metallic Materials, 4. , Springer, BerlinNazri, G.A., (1994) Solid State Batteries: Materials Design and Optimization, , Kluwer Academic, Norwell, MAPronin, I.S., Vashman, A.A., Sigaryov, S.E., (1993) Phys. Rev. B, 48, p. 16463Pronin, I.S., Sigaryov, S.E., Vashman, A.A., (1990) Solid State Ionics, 38, p. 9Vashman, A.A., Pronin, I.S., Sigaryov, S.E., (1992) Solid State Ionics, 58, p. 201Prigge, C., Müller-Warmuth, W., Gocke, E., Schöllhorn, R., (1993) Solid State Ionics, 62, p. 143Goñi, A., Pizarro, J.L., Lezama, L., Barberis, G.E., Arriortua, M.I., Rojo, T., (1996) J. Magn. Magn. Mater., 164, p. 251Fournes, L., private communicationVaknin, D., unpublishe