Comparative study on structure and magnetic properties of polycrystalline PrxY1-xBa2Cu3O7-δ prepared in oxygen and argon atmosphere

C. Stari; L. Cichetto; C. H.M.A. Peres; V. A.G. Rivera; S. Sergeenkov; C. A. Cardoso; E. Marega; F. M. Araújo-Moreira

doi:10.1016/j.jallcom.2012.03.048

Comparative study on structure and magnetic properties of polycrystalline Pr_xY_1-xBa₂Cu₃O_7-δ prepared in oxygen and argon atmosphere

C. Stari, L. Cichetto, C. H.M.A. Peres, V. A.G. Rivera, S. Sergeenkov, C. A. Cardoso, E. Marega, F. M. Araújo-Moreira

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

9 Scopus citations

Abstract

We report a systematic study on the influence of the synthesis routes on the structural and magnetic properties of polycrystalline Pr_xY _1-xBa₂Cu₃O_7-δ. We have prepared high-quality samples of this material by following a sol-gel method based on heat treatment in both inert argon and oxygen atmospheres in order to compare their effect on the formation of the superconducting phase using X-ray powder diffraction. Magnetic measurements (DC and AC susceptibility) clearly demonstrate that, for the same concentration of Pr, the superconducting transition temperature markedly increases in all samples prepared in argon atmosphere, including pure Pr-123.

Original language	English
Pages (from-to)	135-140
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	528
DOIs	https://doi.org/10.1016/j.jallcom.2012.03.048
State	Published - 5 Jul 2012
Externally published	Yes

Bibliographical note

Funding Information:
We thank Marcel Ausloos for useful discussions. The authors gratefully acknowledge Brazilian agencies FAPESP , CNPq and CAPES for financial support. Cecilia Stari thanks CAPES (IEL Nacional-Brazil) for the fellowship.

Keywords

Argon gas atmosphere
Critical temperature
Magnetic susceptibility
Sol-gel method
Structure

Access to Document

10.1016/j.jallcom.2012.03.048

Cite this

@article{f675e6ef927a41cdb6a12252df577119,

title = "Comparative study on structure and magnetic properties of polycrystalline PrxY1-xBa2Cu3O7-δ prepared in oxygen and argon atmosphere",

abstract = "We report a systematic study on the influence of the synthesis routes on the structural and magnetic properties of polycrystalline PrxY 1-xBa2Cu3O7-δ. We have prepared high-quality samples of this material by following a sol-gel method based on heat treatment in both inert argon and oxygen atmospheres in order to compare their effect on the formation of the superconducting phase using X-ray powder diffraction. Magnetic measurements (DC and AC susceptibility) clearly demonstrate that, for the same concentration of Pr, the superconducting transition temperature markedly increases in all samples prepared in argon atmosphere, including pure Pr-123.",

keywords = "Argon gas atmosphere, Critical temperature, Magnetic susceptibility, Sol-gel method, Structure",

author = "C. Stari and L. Cichetto and Peres, {C. H.M.A.} and Rivera, {V. A.G.} and S. Sergeenkov and Cardoso, {C. A.} and E. Marega and Ara{\'u}jo-Moreira, {F. M.}",

note = "Funding Information: We thank Marcel Ausloos for useful discussions. The authors gratefully acknowledge Brazilian agencies FAPESP , CNPq and CAPES for financial support. Cecilia Stari thanks CAPES (IEL Nacional-Brazil) for the fellowship.",

year = "2012",

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doi = "10.1016/j.jallcom.2012.03.048",

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T1 - Comparative study on structure and magnetic properties of polycrystalline PrxY1-xBa2Cu3O7-δ prepared in oxygen and argon atmosphere

AU - Stari, C.

AU - Cichetto, L.

AU - Peres, C. H.M.A.

AU - Rivera, V. A.G.

AU - Sergeenkov, S.

AU - Cardoso, C. A.

AU - Marega, E.

AU - Araújo-Moreira, F. M.

N1 - Funding Information: We thank Marcel Ausloos for useful discussions. The authors gratefully acknowledge Brazilian agencies FAPESP , CNPq and CAPES for financial support. Cecilia Stari thanks CAPES (IEL Nacional-Brazil) for the fellowship.

PY - 2012/7/5

Y1 - 2012/7/5

N2 - We report a systematic study on the influence of the synthesis routes on the structural and magnetic properties of polycrystalline PrxY 1-xBa2Cu3O7-δ. We have prepared high-quality samples of this material by following a sol-gel method based on heat treatment in both inert argon and oxygen atmospheres in order to compare their effect on the formation of the superconducting phase using X-ray powder diffraction. Magnetic measurements (DC and AC susceptibility) clearly demonstrate that, for the same concentration of Pr, the superconducting transition temperature markedly increases in all samples prepared in argon atmosphere, including pure Pr-123.

AB - We report a systematic study on the influence of the synthesis routes on the structural and magnetic properties of polycrystalline PrxY 1-xBa2Cu3O7-δ. We have prepared high-quality samples of this material by following a sol-gel method based on heat treatment in both inert argon and oxygen atmospheres in order to compare their effect on the formation of the superconducting phase using X-ray powder diffraction. Magnetic measurements (DC and AC susceptibility) clearly demonstrate that, for the same concentration of Pr, the superconducting transition temperature markedly increases in all samples prepared in argon atmosphere, including pure Pr-123.

KW - Argon gas atmosphere

KW - Critical temperature

KW - Magnetic susceptibility

KW - Sol-gel method

KW - Structure

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DO - 10.1016/j.jallcom.2012.03.048

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VL - 528

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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