Superconducting NdBa2Cu3O7-δ thin films grown on bare (11̄02) sapphire by pulsed laser deposition

T. Y. Cheng; P. I. Lin; S. F. Chen; S. J. Liu; J. Y. Juang; J. Y. Lin; K. H. Wu; T. M. Uen; Y. S. Gou; R. L. Wang; H. C. Li

doi:10.1023/A:1022967706861

Superconducting NdBa₂Cu₃O_7-δ thin films grown on bare (11̄02) sapphire by pulsed laser deposition

T. Y. Cheng^*
, P. I. Lin
, S. F. Chen
, S. J. Liu
, J. Y. Juang
, J. Y. Lin
, K. H. Wu
, T. M. Uen
, Y. S. Gou
, R. L. Wang
, H. C. Li

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

Superconducting NdBa₂ Cu₃ O_7-δ (NBCO) thin films with T_c=89 K have been successfully grown on bare (11 02) sapphire substrates by pulsed laser deposition (PLD). The X-ray diffraction results show that the as-grown NBCO films are all c-axis oriented with no observable second phase. The c-axis parameter decreases monotonically with increasing the deposition temperature (T_s), suggesting that the corresponding degradation of T_c for T_s> 790 °C might not originate from oxygen deficiency. It is conceived that the film-substrate reaction that occurring at the interface may cause Ba-deficiency and hence enhance Nd-Ba antisite substitutions.

Original language	English
Pages (from-to)	557-561
Number of pages	5
Journal	Journal of Low Temperature Physics
Volume	131
Issue number	3-4
DOIs	https://doi.org/10.1023/A:1022967706861
Publication status	Published - 2003 May
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics

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title = "Superconducting NdBa2Cu3O7-δ thin films grown on bare (1{\=1}02) sapphire by pulsed laser deposition",

abstract = "Superconducting NdBa2 Cu3 O7-δ (NBCO) thin films with Tc=89 K have been successfully grown on bare (11 02) sapphire substrates by pulsed laser deposition (PLD). The X-ray diffraction results show that the as-grown NBCO films are all c-axis oriented with no observable second phase. The c-axis parameter decreases monotonically with increasing the deposition temperature (Ts), suggesting that the corresponding degradation of Tc for Ts> 790 °C might not originate from oxygen deficiency. It is conceived that the film-substrate reaction that occurring at the interface may cause Ba-deficiency and hence enhance Nd-Ba antisite substitutions.",

author = "Cheng, \{T. Y.\} and Lin, \{P. I.\} and Chen, \{S. F.\} and Liu, \{S. J.\} and Juang, \{J. Y.\} and Lin, \{J. Y.\} and Wu, \{K. H.\} and Uen, \{T. M.\} and Gou, \{Y. S.\} and Wang, \{R. L.\} and Li, \{H. C.\}",

year = "2003",

month = may,

doi = "10.1023/A:1022967706861",

language = "English",

volume = "131",

pages = "557--561",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "Springer New York",

number = "3-4",

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AU - Cheng, T. Y.

AU - Lin, P. I.

AU - Chen, S. F.

AU - Liu, S. J.

AU - Juang, J. Y.

AU - Lin, J. Y.

AU - Wu, K. H.

AU - Uen, T. M.

AU - Gou, Y. S.

AU - Wang, R. L.

AU - Li, H. C.

PY - 2003/5

Y1 - 2003/5

N2 - Superconducting NdBa2 Cu3 O7-δ (NBCO) thin films with Tc=89 K have been successfully grown on bare (11 02) sapphire substrates by pulsed laser deposition (PLD). The X-ray diffraction results show that the as-grown NBCO films are all c-axis oriented with no observable second phase. The c-axis parameter decreases monotonically with increasing the deposition temperature (Ts), suggesting that the corresponding degradation of Tc for Ts> 790 °C might not originate from oxygen deficiency. It is conceived that the film-substrate reaction that occurring at the interface may cause Ba-deficiency and hence enhance Nd-Ba antisite substitutions.

AB - Superconducting NdBa2 Cu3 O7-δ (NBCO) thin films with Tc=89 K have been successfully grown on bare (11 02) sapphire substrates by pulsed laser deposition (PLD). The X-ray diffraction results show that the as-grown NBCO films are all c-axis oriented with no observable second phase. The c-axis parameter decreases monotonically with increasing the deposition temperature (Ts), suggesting that the corresponding degradation of Tc for Ts> 790 °C might not originate from oxygen deficiency. It is conceived that the film-substrate reaction that occurring at the interface may cause Ba-deficiency and hence enhance Nd-Ba antisite substitutions.

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ER -

Superconducting NdBa₂Cu₃O_7-δ thin films grown on bare (11̄02) sapphire by pulsed laser deposition

Abstract

ASJC Scopus subject areas

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