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Stimulated Li-7 echo NMR spectroscopy of slow ionic motions in a solid electrolyte

机译:固体电解质中缓慢离子运动的受激Li-7回波NMR光谱

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摘要

Lithium spin-alignment spectroscopy is presented as an NMR technique for studying slow translational motions in solid and solid-like ionic conductors. We employ phase cycling that allows to measure two-time translational correlation functions via the generation of a pure quadrupolar ordered state. Correlation functions of the crystalline electrolyte Li3Sc2(PO4)(3) were recorded for times ranging from about 0.1 ms to more than 10 s, implying that translational diffusion coefficients smaller than 10(-20) m(2)/s become accessible. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 26]
机译:锂自旋取向光谱是一种用于研究固体和类固体离子导体中缓慢平移运动的NMR技术。我们采用相位循环,可以通过生成纯四极有序状态来测量两次平移相关函数。记录的结晶电解质Li3Sc2(PO4)(3)的相关函数的时间范围从大约0.1毫秒到大于10 s,这意味着可以访问小于10(-20)m(2)/ s的平移扩散系数。 (C)2000 Elsevier Science B.V.保留所有权利。 [参考:26]

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