TY - JOUR
T1 - Micro-Raman spectroscopy as a unique tool for phase characterization of Bi-2212/Ag tapes
AU - Nakane, T.
AU - Osada, M.
AU - Kumakura, H.
PY - 2006/10/1
Y1 - 2006/10/1
N2 - 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 Tc superconductive cuprate (HTSC) tapes. We performed the characterization for the surface and cross sectional areas of tapes, with spot diameters smaller than 1 μm. 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.
AB - 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 Tc superconductive cuprate (HTSC) tapes. We performed the characterization for the surface and cross sectional areas of tapes, with spot diameters smaller than 1 μm. 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.
KW - Bi-2212/Ag tape
KW - Characterization
KW - Raman spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=33748200708&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748200708&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2006.05.053
DO - 10.1016/j.physc.2006.05.053
M3 - Article
AN - SCOPUS:33748200708
SN - 0921-4534
VL - 445-448
SP - 737
EP - 740
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - 1-2
ER -