拉曼光谱
超导电性
拉曼散射
声子
衍射
材料科学
X射线晶体学
分析化学(期刊)
转变温度
超导转变温度
凝聚态物理
化学
光学
物理
色谱法
作者
H. K. Lee,D. Kim,S. I. Suck
摘要
High-Tc superconducting Y1Ba2Cu3O7−x bulk samples were prepared by polymeric precursor synthesis. Resistance, x-ray diffraction, and Raman scattering measurements were performed for sample characterization. The bulk specimen exhibited a sharp superconducting transition at 94.5 K with a 10%–90% transition width of 0.5 K. Four Raman active phonon modes were observed at frequences of 150, 337, 440, and 502 cm−1 in the 120–700 cm−1 region.
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