Raman study of the thermal stability of HgBa2CaCu2O6+δ and HgBa2Ca2Cu3O8+δ

H. Chang, Z. H. He, R. L. Meng, Y. Y. Xue, C. W. Chu

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

We studied the thermal stability of HgBa2CaCu2O6+δ and HgBa2Ca2Cu3O8+δ at varying laser irradiation power. Each compound has two Raman bands around 570 and 590 cm-1 which are assigned to the vibrations of the interstitial oxygen in HgOδ layers and the apical oxygen in BaO layers, respectively. The 590 cm-1 band shifts position slightly with irradiation, and both the intensity and position of the 570 cm-1 band vary significantly with the laser power. The occupation factor of the interstitial oxygen is sensitive to the annealing temperature. At higher temperatures (550-600°C), both compounds decompose into various (Ba,Cu)-oxides such as Ba1-xCaxCuO2.

原文English
頁(從 - 到)126-132
頁數7
期刊Physica C: Superconductivity and its applications
251
發行號1-2
DOIs
出版狀態Published - 1995 九月 1

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 能源工程與電力技術
  • 電氣與電子工程

指紋

深入研究「Raman study of the thermal stability of HgBa<sub>2</sub>CaCu<sub>2</sub>O<sub>6+δ</sub> and HgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>8+δ</sub>」主題。共同形成了獨特的指紋。

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