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首页> 外文期刊>Japanese journal of applied physics >In-situ Annular Bright-Field Imaging of Structural Transformation of Spinel LiV2O4 Crystals into Defective LixV2O4
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In-situ Annular Bright-Field Imaging of Structural Transformation of Spinel LiV2O4 Crystals into Defective LixV2O4

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摘要

Thin LiV2O4 crystals with a spinel structure were observed by annular bright-field (ABF) imaging in which the contrast of lithium, vanadium, and oxygen columns varies depending on the number of ions in each column. On intense electron beam irradiation, lithium ions started to be displaced from the tetrahedral sites, which induced the redistribution of vanadium ions at octahedral sites. Consequently, the spinel structure was transformed into a defective NaCl structure. In-situ ABF imaging of thin specimens is a promising method for investigating local structural transformations accompanied by the displacement of lithium ions. (C) 2012 The Japan Society of Applied Physics

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