Organometallic chemical vapor deposition of superconducting, high T c Pb-doped Bi-Sr-Ca-Cu-O thin films

J. M. Zhang; H. O. Marcy; L. M. Tonge; B. W. Wessels; T. J. Marks; C. R. Kannewurf

doi:10.1063/1.102330

Organometallic chemical vapor deposition of superconducting, high T _c Pb-doped Bi-Sr-Ca-Cu-O thin films

J. M. Zhang^*, H. O. Marcy, L. M. Tonge, B. W. Wessels, T. J. Marks, C. R. Kannewurf

^*Corresponding author for this work

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

37 Scopus citations

Abstract

Highly oriented films of the high T_c Bi-Pb-Sr-Ca-Cu-O (BPSCCO)superconductor have been prepared by two organometallic chemical vapor deposition (OMCVD) approaches. In the first approach, Pb is introduced by alternate deposition of BSCCO and PbO_x films using the volatile metalorganic precursors Cu(acetylacetonate)₂, Sr(dipivaloylmethanate) ₂, Ca(dipivaloylmethanate)₂, triphenyl bismuth, and tetraphenyl lead. In the second approach, Pb is incorporated into an OMCVD-derived BSCCO film by vapor diffusion using PbO as the source. X-ray diffractometry and scanning electron microscopy reveal that Pb doping significantly improves the crystalline orientation and the film morphology. Films deposited by both methods on [100] single-crystal MgO consist predominantly of the Bi₂(Sr,Ca)₃Cu₂O _x phase and have a high preferential orientation of the crystallite c axes perpendicular to the substrate surface. Four-probe resistivity measurements indicate the onset of film superconductivity at ∼110 K and zero resistance by 80 K.

Original language	English (US)
Pages (from-to)	1906-1908
Number of pages	3
Journal	Applied Physics Letters
Volume	55
Issue number	18
DOIs	https://doi.org/10.1063/1.102330
State	Published - 1989

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Physics and Astronomy (miscellaneous)

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title = "Organometallic chemical vapor deposition of superconducting, high T c Pb-doped Bi-Sr-Ca-Cu-O thin films",

abstract = "Highly oriented films of the high Tc Bi-Pb-Sr-Ca-Cu-O (BPSCCO)superconductor have been prepared by two organometallic chemical vapor deposition (OMCVD) approaches. In the first approach, Pb is introduced by alternate deposition of BSCCO and PbOx films using the volatile metalorganic precursors Cu(acetylacetonate)2, Sr(dipivaloylmethanate) 2, Ca(dipivaloylmethanate)2, triphenyl bismuth, and tetraphenyl lead. In the second approach, Pb is incorporated into an OMCVD-derived BSCCO film by vapor diffusion using PbO as the source. X-ray diffractometry and scanning electron microscopy reveal that Pb doping significantly improves the crystalline orientation and the film morphology. Films deposited by both methods on [100] single-crystal MgO consist predominantly of the Bi2(Sr,Ca)3Cu2O x phase and have a high preferential orientation of the crystallite c axes perpendicular to the substrate surface. Four-probe resistivity measurements indicate the onset of film superconductivity at ∼110 K and zero resistance by 80 K.",

author = "Zhang, {J. M.} and Marcy, {H. O.} and Tonge, {L. M.} and Wessels, {B. W.} and Marks, {T. J.} and Kannewurf, {C. R.}",

year = "1989",

doi = "10.1063/1.102330",

language = "English (US)",

volume = "55",

pages = "1906--1908",

journal = "Applied Physics Letters",

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T1 - Organometallic chemical vapor deposition of superconducting, high T c Pb-doped Bi-Sr-Ca-Cu-O thin films

AU - Zhang, J. M.

AU - Marcy, H. O.

AU - Tonge, L. M.

AU - Wessels, B. W.

AU - Marks, T. J.

AU - Kannewurf, C. R.

PY - 1989

Y1 - 1989

N2 - Highly oriented films of the high Tc Bi-Pb-Sr-Ca-Cu-O (BPSCCO)superconductor have been prepared by two organometallic chemical vapor deposition (OMCVD) approaches. In the first approach, Pb is introduced by alternate deposition of BSCCO and PbOx films using the volatile metalorganic precursors Cu(acetylacetonate)2, Sr(dipivaloylmethanate) 2, Ca(dipivaloylmethanate)2, triphenyl bismuth, and tetraphenyl lead. In the second approach, Pb is incorporated into an OMCVD-derived BSCCO film by vapor diffusion using PbO as the source. X-ray diffractometry and scanning electron microscopy reveal that Pb doping significantly improves the crystalline orientation and the film morphology. Films deposited by both methods on [100] single-crystal MgO consist predominantly of the Bi2(Sr,Ca)3Cu2O x phase and have a high preferential orientation of the crystallite c axes perpendicular to the substrate surface. Four-probe resistivity measurements indicate the onset of film superconductivity at ∼110 K and zero resistance by 80 K.

AB - Highly oriented films of the high Tc Bi-Pb-Sr-Ca-Cu-O (BPSCCO)superconductor have been prepared by two organometallic chemical vapor deposition (OMCVD) approaches. In the first approach, Pb is introduced by alternate deposition of BSCCO and PbOx films using the volatile metalorganic precursors Cu(acetylacetonate)2, Sr(dipivaloylmethanate) 2, Ca(dipivaloylmethanate)2, triphenyl bismuth, and tetraphenyl lead. In the second approach, Pb is incorporated into an OMCVD-derived BSCCO film by vapor diffusion using PbO as the source. X-ray diffractometry and scanning electron microscopy reveal that Pb doping significantly improves the crystalline orientation and the film morphology. Films deposited by both methods on [100] single-crystal MgO consist predominantly of the Bi2(Sr,Ca)3Cu2O x phase and have a high preferential orientation of the crystallite c axes perpendicular to the substrate surface. Four-probe resistivity measurements indicate the onset of film superconductivity at ∼110 K and zero resistance by 80 K.

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IS - 18

ER -

Organometallic chemical vapor deposition of superconducting, high T _c Pb-doped Bi-Sr-Ca-Cu-O thin films

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