Far infrared optical absorption study and characterization of Y1Ba2Cu3Oδ/ Pr0.5Y0.5Ba2Cu3O7-δ superlattices

T. R. Yang*, H. C. Yang, H. E. Horng, Y. K. Chyan


研究成果: 雜誌貢獻期刊論文同行評審


We report infrared reflection measurements on Y1Ba2Cu3O7-δ/Pr 0.5Y0.5Ba2Cu3O7-δ (60Å/60Å, 16 layers and 60Å/24Å, 16 layers on SrTiO3 (100) substrate) high Tc superconducting superlattice films. We measured absorption spectrum of these films from 30 - 700 cm-1(3.7 - 66.9 meV) and 80 - 300 K. These films showed resistive superconducting transitions with an on set at 80 K. Some of the phonons are smear out because of strong electron-phonon mediation. The appearance of vibration modes are around 547, 361, 279, 172, 150, 125 cm-1 at 80 K. Some contribution and interaction between layers were observed from measured spectra. The different configuration of interlayer thickness of these superlattices have 1-2 cm-1 peaks shift in spectra. The dielectric and electron-phonon behaviors due to interaction of superlattice layers will go further studies.

頁(從 - 到)1031-1032
期刊Physica C: Superconductivity and its applications
發行號PART 2
出版狀態已發佈 - 1997 八月

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


深入研究「Far infrared optical absorption study and characterization of Y<sub>1</sub>Ba<sub>2</sub>Cu<sub>3</sub>Oδ/ Pr<sub>0.5</sub>Y<sub>0.5</sub>Ba<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> superlattices」主題。共同形成了獨特的指紋。