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 -