Infrared properties of single crystal MgAl2O4, a substrate for high-temperature superconducting films

T. R. Yang*, H. E. Horng, H. C. Yang, L. J. Jang, W. N. Kang, S. S. Yom

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

8 引文 斯高帕斯(Scopus)

摘要

We study and analyze the infrared properties of single crystal MgAl2O4, an important substrate for high-Tc superconducting films, from 10 to 300 cm-1 and 4.2 to 350K. A number of infrared active modes between 20-150 cm-1 have been observed. Some of these modes such as 68, 72, 82, 103 cm-1 are consist with the earlier reports by inelastic neutron scattering method and characterized as transverse acoustic phonon modes. Our measurements also shows extra modes such as 35, 44, 56, 75, 82 cm-1. The spectra in the far-infrared region has about 60% transmission at 4.2K and opaque above 180cm-1. The transparent properties of single crystal MgAl2O4 in far infrared region in liquid helium temperature is especially good for HTSC thin films substrate.

原文英語
頁(從 - 到)1445-1446
頁數2
期刊Physica C: Superconductivity and its applications
235-240
發行號PART 2
DOIs
出版狀態已發佈 - 1994 十二月

ASJC Scopus subject areas

  • 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

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