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

doi:10.1016/S0921-4534(97)00600-X

Far infrared optical absorption study and characterization of Y₁Ba₂Cu₃Oδ/ Pr_0.5Y_0.5Ba₂Cu₃O_7-δ superlattices

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We report infrared reflection measurements on Y₁Ba₂Cu₃O_7-δ/Pr _0.5Y_0.5Ba₂Cu₃O_7-δ (60Å/60Å, 16 layers and 60Å/24Å, 16 layers on SrTiO₃ (100) substrate) high T_c 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 language	English
Pages (from-to)	1031-1032
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	282-287
Issue number	PART 2
DOIs	https://doi.org/10.1016/S0921-4534(97)00600-X
Publication status	Published - 1997 Aug

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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10.1016/S0921-4534(97)00600-X

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@article{8883ac031fcd4ec8b0236ca610a5c79b,

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

abstract = "We report infrared reflection measurements on Y1Ba2Cu3O7-δ/Pr 0.5Y0.5Ba2Cu3O7-δ (60{\AA}/60{\AA}, 16 layers and 60{\AA}/24{\AA}, 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.",

author = "Yang, {T. R.} and Yang, {H. C.} and Horng, {H. E.} and Chyan, {Y. K.}",

year = "1997",

month = aug,

doi = "10.1016/S0921-4534(97)00600-X",

language = "English",

volume = "282-287",

pages = "1031--1032",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "PART 2",

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TY - JOUR

T1 - Far infrared optical absorption study and characterization of Y1Ba2Cu3Oδ/ Pr0.5Y0.5Ba2Cu3O7-δ superlattices

AU - Yang, T. R.

AU - Yang, H. C.

AU - Horng, H. E.

AU - Chyan, Y. K.

PY - 1997/8

Y1 - 1997/8

N2 - 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.

AB - 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.

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JO - Physica C: Superconductivity and its applications

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ER -

Far infrared optical absorption study and characterization of Y₁Ba₂Cu₃Oδ/ Pr_0.5Y_0.5Ba₂Cu₃O_7-δ superlattices

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