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

Tzuen-Rong Yang, Hong-Chang Yang, Herng-Er Horng, Y. K. Chyan

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)1031-1032
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume282-287
Issue numberPART 2
DOIs
Publication statusPublished - 1997 Jan 1

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Superlattices
Light absorption
superlattices
optical absorption
Infrared radiation
Superconducting films
Electrons
Phonons
Absorption spectra
smear
mediation
infrared reflection
superconducting films
Substrates
interlayers
vibration mode
phonons
electrons
interactions
absorption spectra

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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Far infrared optical absorption study and characterization of Y1Ba2Cu3Oδ/ Pr0.5Y0.5Ba2Cu3O7-δ superlattices. / Yang, Tzuen-Rong; Yang, Hong-Chang; Horng, Herng-Er; Chyan, Y. K.

In: Physica C: Superconductivity and its applications, Vol. 282-287, No. PART 2, 01.01.1997, p. 1031-1032.

Research output: Contribution to journalArticle

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