Comparative study on structure and magnetic properties of polycrystalline PrxY1-xBa2Cu3O7-delta prepared in oxygen and argon atmosphere
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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| Data(s) |
12/10/2013
12/10/2013
2012
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| Resumo |
We report a systematic study on the influence of the synthesis routes on the structural and magnetic properties of polycrystalline PrxY1-xBa2Cu3O7-delta. 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. (C) 2012 Elsevier B.V. All rights reserved. FAPESP FAPESP CNPq CNPq CAPES CAPES CAPES (IEL NacionalBrazil) CAPES (IEL Nacional-Brazil) |
| Identificador |
JOURNAL OF ALLOYS AND COMPOUNDS, LAUSANNE, v. 528, n. 3, supl. 1, Part 3, pp. 135-140, 38534, 2012 0925-8388 http://www.producao.usp.br/handle/BDPI/34169 10.1016/j.jallcom.2012.03.048 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE SA LAUSANNE |
| Relação |
JOURNAL OF ALLOYS AND COMPOUNDS |
| Direitos |
closedAccess Copyright ELSEVIER SCIENCE SA |
| Palavras-Chave | #POLYCRYSTALLINE PRXY1-XBA2CU3O7-DELTA #SOL-GEL METHOD #ARGON GAS ATMOSPHERE #STRUCTURE #MAGNETIC SUSCEPTIBILITY #CRITICAL TEMPERATURE #SUPERCONDUCTIVITY #Y1-XPRXBA2CU3O7-DELTA #PRBA2CU3O7-DELTA #SYSTEM #PR #MAGNETORESISTANCE #MICROSTRUCTURE #MANIFESTATION #SUPPRESSION #FIELD #CHEMISTRY, PHYSICAL #MATERIALS SCIENCE, MULTIDISCIPLINARY #METALLURGY & METALLURGICAL ENGINEERING |
| Tipo |
article original article publishedVersion |
