Raman scattering study of phonons in Bi-based superconductor thin films

C. Mejía-García; E. Díaz-Valdés; G. Contreras-Puente; J. L. López-López; M. Jergel; A. Morales

doi:10.1016/j.physc.2004.06.008

Raman scattering study of phonons in Bi-based superconductor thin films

C. Mejía-García, E. Díaz-Valdés, G. Contreras-Puente, J. L. López-López, M. Jergel, A. Morales

Escuela Superior de Física y Matemáticas (ESFM)

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

1 Scopus citations

Abstract

Raman spectra were obtained from samples of Bi-Pb-Sr-Ca-Cu-O (BPSCCO) thin films after varying several growth parameters, such as covering material, annealing time (t_R), annealing temperature (T_R), and nominal lead content (x). Thin films with the nominal composition Bi _1.4Pb_xSr₂Ca₂Cu₃O _δwere grown on MgO substrates by a spray pyrolysis technique, followed by a solid state reaction. The results of Raman scattering measurements at room temperature show a series of vibrational optical modes within the range 300-900 cm^-1. The assignment of these modes was made by involving mainly the 2212 and 2223 phases and was confirmed by both X-ray diffraction and resistance in dependence of the temperature (R-T) measurements as well.

Original language	English
Pages (from-to)	11-16
Number of pages	6
Journal	Physica C: Superconductivity and its Applications
Volume	416
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physc.2004.06.008
State	Published - 15 Nov 2004

Keywords

BPSCCO superconducting films
Raman modes and intensities
Raman scattering

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10.1016/j.physc.2004.06.008

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@article{a90c0be110c246a69986b943d7a3a103,

title = "Raman scattering study of phonons in Bi-based superconductor thin films",

abstract = "Raman spectra were obtained from samples of Bi-Pb-Sr-Ca-Cu-O (BPSCCO) thin films after varying several growth parameters, such as covering material, annealing time (tR), annealing temperature (TR), and nominal lead content (x). Thin films with the nominal composition Bi 1.4PbxSr2Ca2Cu3O δwere grown on MgO substrates by a spray pyrolysis technique, followed by a solid state reaction. The results of Raman scattering measurements at room temperature show a series of vibrational optical modes within the range 300-900 cm-1. The assignment of these modes was made by involving mainly the 2212 and 2223 phases and was confirmed by both X-ray diffraction and resistance in dependence of the temperature (R-T) measurements as well.",

keywords = "BPSCCO superconducting films, Raman modes and intensities, Raman scattering",

author = "C. Mej{\'i}a-Garc{\'i}a and E. D{\'i}az-Vald{\'e}s and G. Contreras-Puente and L{\'o}pez-L{\'o}pez, {J. L.} and M. Jergel and A. Morales",

note = "Funding Information: We gratefully acknowledge the financial support by CONACyT, Ref. 34074-U and 34291-U, Mexico. The authors would like to thank to Dr. Jaime Ortiz (ESFM-IPN, Mexico) for reading the manuscript.",

year = "2004",

month = nov,

day = "15",

doi = "10.1016/j.physc.2004.06.008",

language = "Ingl{\'e}s",

volume = "416",

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

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TY - JOUR

T1 - Raman scattering study of phonons in Bi-based superconductor thin films

AU - Mejía-García, C.

AU - Díaz-Valdés, E.

AU - Contreras-Puente, G.

AU - López-López, J. L.

AU - Jergel, M.

AU - Morales, A.

N1 - Funding Information: We gratefully acknowledge the financial support by CONACyT, Ref. 34074-U and 34291-U, Mexico. The authors would like to thank to Dr. Jaime Ortiz (ESFM-IPN, Mexico) for reading the manuscript.

PY - 2004/11/15

Y1 - 2004/11/15

N2 - Raman spectra were obtained from samples of Bi-Pb-Sr-Ca-Cu-O (BPSCCO) thin films after varying several growth parameters, such as covering material, annealing time (tR), annealing temperature (TR), and nominal lead content (x). Thin films with the nominal composition Bi 1.4PbxSr2Ca2Cu3O δwere grown on MgO substrates by a spray pyrolysis technique, followed by a solid state reaction. The results of Raman scattering measurements at room temperature show a series of vibrational optical modes within the range 300-900 cm-1. The assignment of these modes was made by involving mainly the 2212 and 2223 phases and was confirmed by both X-ray diffraction and resistance in dependence of the temperature (R-T) measurements as well.

AB - Raman spectra were obtained from samples of Bi-Pb-Sr-Ca-Cu-O (BPSCCO) thin films after varying several growth parameters, such as covering material, annealing time (tR), annealing temperature (TR), and nominal lead content (x). Thin films with the nominal composition Bi 1.4PbxSr2Ca2Cu3O δwere grown on MgO substrates by a spray pyrolysis technique, followed by a solid state reaction. The results of Raman scattering measurements at room temperature show a series of vibrational optical modes within the range 300-900 cm-1. The assignment of these modes was made by involving mainly the 2212 and 2223 phases and was confirmed by both X-ray diffraction and resistance in dependence of the temperature (R-T) measurements as well.

KW - BPSCCO superconducting films

KW - Raman modes and intensities

KW - Raman scattering

UR - http://www.scopus.com/inward/record.url?scp=8344235007&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2004.06.008

DO - 10.1016/j.physc.2004.06.008

M3 - Artículo

SN - 0921-4534

VL - 416

SP - 11

EP - 16

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-2

ER -

Raman scattering study of phonons in Bi-based superconductor thin films

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Keywords

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