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首页> 外文期刊>Physica, C. Superconductivity and its applications >Micro-Raman spectroscopy as a unique tool for phase characterization of Bi-2212/Ag tapes
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Micro-Raman spectroscopy as a unique tool for phase characterization of Bi-2212/Ag tapes

机译：显微拉曼光谱法是Bi-2212 / Ag胶带相表征的独特工具

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In this work, we present reference Raman spectra of Bi-2212/Ag tape as evidence that micro-Raman spectroscopy constitutes a rapid and sensitive evaluation tool for high T-c superconductive cuprate (HTSC) tapes. We performed the characterization for the surface and cross sectional areas of tapes, with spot diameters smaller than 1 mu m. The results of this study confirm that local phase characterization is possible for Bi-2212/Ag tape. Our further attempt to carry out a micro-Raman spectroscopy mapping measurement for the Bi-2212 phase yielded meaningful phase and grain alignment distribution data, even though the measurement spacing was rough and the small observation area. With appropriate upgrades for full-scale characterization with fine measurement spacing and a large observation area, we believe that this spectroscopy will be an effective tool to detect and evaluate precise local changes in Bi-2212/Ag tape. The Raman imaging for Bi-2212/Ag may have a substantial potential to distinguish the distribution of the impurity oxide, degree of grain orientation, crystallinity, nonstoichiometry of the main phase, and other relevant characteristics. (c) 2006 Elsevier B.V. All rights reserved.
机译：在这项工作中，我们提出Bi-2212 / Ag胶带的参考拉曼光谱，以作为微观拉曼光谱构成高T-c超导铜酸盐（HTSC）胶带的快速而灵敏的评估工具的证据。我们对带的表面和横截面积进行了表征，这些带的直径小于1微米。这项研究的结果证实，Bi-2212 / Ag胶带可以进行局部相表征。我们对Bi-2212相进行显微拉曼光谱映射测量的进一步尝试产生了有意义的相和晶粒取向分布数据，即使测量间隔很粗糙且观察面积很小。通过适当的升级，可以以精细的测量间隔和大观察面积进行全面表征，我们相信这种光谱学将是检测和评估Bi-2212 / Ag胶带中精确的局部变化的有效工具。 Bi-2212 / Ag的拉曼成像可能具有很大的潜力来区分杂质氧化物的分布，晶粒取向度，结晶度，主相的非化学计量以及其他相关特征。 （c）2006 Elsevier B.V.保留所有权利。

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