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

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

9 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Páginas (desde-hasta)	135-140
Número de páginas	6
Publicación	Journal of Alloys and Compounds
Volumen	528
DOI	https://doi.org/10.1016/j.jallcom.2012.03.048
Estado	Publicada - 5 jul. 2012
Publicado de forma externa	Sí

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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.",

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

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TY - JOUR

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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U2 - 10.1016/j.jallcom.2012.03.048

DO - 10.1016/j.jallcom.2012.03.048

M3 - Artículo

AN - SCOPUS:84859920513

SN - 0925-8388

VL - 528

SP - 135

EP - 140

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -