Thermally activated mobility of lithium ions in Li1-xCuSbO4 as studied by 7Li NMR
https://doi.org/10.26907/mrsej-19602
Abstract
The Li diffusion in Li1-xCuSbO4 with lithium deficiency x = 0.02, 0.05, 0.07 and 0.1 was studied by investigation of motional narrowing of the central 7 NMR line in the temperature range from 290 K to 470 K. The activation energy of hopping of lithium ions was determined from the temperature dependence of the NMR linewidth. The dependence of the obtained activation energy on the lithium content indicates the opening of motion channels in the crystals at x close to 0.1 due to the formation of free vacancies at the lithium position, which favors the thermally activated hopping of ions.
Supporting agencies: The work was supported by RFBR grant No. 18-02-00664.
About the Authors
D. Gafurov
Zavoisky Physical-Technical Institute, FRC "Kazan Scientific Center of RAS"; Institute of Physics, Kazan Federal University
Russian Federation
Russian Federation
Sibirsky Trakt 10/7, 420029 Kazan; Kremlevskaya 18, Kazan 420008
M. -I. Sturza
Leibniz Institute for Solid State and Materials Research IFW Dresden
Germany
Germany
01069 Dresden
E. Vavilova
Zavoisky Physical-Technical Institute, FRC "Kazan Scientific Center of RAS"
Russian Federation
Russian Federation
Sibirsky Trakt 10/7, 420029 Kazan
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Review
For citations:
Gafurov D., Sturza M.-., Vavilova E. Thermally activated mobility of lithium ions in Li1-xCuSbO4 as studied by 7Li NMR. Magnetic Resonance in Solids. 2019;21(6):19602 (5 pp.). https://doi.org/10.26907/mrsej-19602
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