PerspectiveMaterials Science

Dynamics in Ceramics

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Science  23 Aug 2002:
Vol. 297, Issue 5585, pp. 1285-1287
DOI: 10.1126/science.1075881

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Ionic conductors play an important role in batteries and fuel cells. But little is known about how anions such as oxide ions (O) move through a solid. In his Perspective, Stebbins highlights the report of Kim and Grey, who use solid state Nuclear Magnetic Resonance to show that oxygen vacancies promote diffusive motion in an ionic conductive ceramic.