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REDWANE MORGHI1, ABDELHAKIM NAFIDI1,* , ABDELJABAR ABOULKASSIM1, KALTOUM KHALLOUQ1, HASSAN CHAIB1, ALI KHALAL1, AHMED TIRBIYINE1,2, AHMED TAOUFIK2, BERNABÉ MARÍ SOUCASE3, MIGUEL ALFONSO MOLLAR GARCÍA3, KRISHAN CHANDER SINGH4
- Laboratory of Condensed Matter Physics and Nanomaterials for Renewable Energy, Faculty of Sciences; University Ibn Zohr, Agadir, Morocco
- Group of high Tc superconductors, Faculty of Sciences; University Ibn Zohr, Agadir, Morocco
- Laboratory of Optoelectronics, Universitat Politècnica de València, Spain
- Department of chemistry, M. D. University, Rohtak, India
Polycrystalline samples (Y1-xEux)SrBaCu3O6+z have been synthesized by solid state reaction method with two distinguished heat treatment. The irreversibility line and flux pinning proprieties (pinning force density) has been investigated by AC susceptibility measurements. The experimental data for irreversibility line fit well with the power law relation: H=(1-T/Tc) n . Results show that the effect of annealing under argon flux leads to an enhancement of irreversibility line and an increase of pinning density force for high applied magnetic field which is justified by the improvement of crystallographic quality and the intergranular coupling of the samples heated under argon flux [AO].
AC magnetic susceptibility, Heat treatments control of Tc, Irreversibility line, Flux Pinning, (Y1-xEux)SrBaCu3O6+, Ceramic cuprites.
Submitted at: Sept. 28, 2013
Accepted at: Nov. 7, 2013
REDWANE MORGHI, ABDELHAKIM NAFIDI, ABDELJABAR ABOULKASSIM, KALTOUM KHALLOUQ, HASSAN CHAIB, ALI KHALAL, AHMED TIRBIYINE, AHMED TAOUFIK, BERNABÉ MARÍ SOUCASE, MIGUEL ALFONSO MOLLAR GARCÍA, KRISHAN CHANDER SINGH, Remarkable influence of heat treatment on AC irreversibility line and flux pinning properties in (Y1-xEux)SrBaCu3O6+z, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 11-12, pp. 1306-1310 (2013)
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