Comparative study on the influence of rare earth ions doping in Bi0.6Sr0.4FeO3 nanomultiferroic system

Ahmed, M. A.; Okasha, N.; Abdelaal, M. M.; Ayman, M.

doi:10.21608/jsrs.2015.19950

Comparative study on the influence of rare earth ions doping in Bi0.6Sr0.4FeO3 nanomultiferroic system

Document Type : Original Article

Authors

¹ Material Science Lab. (1) Physics Department, Faculty of Science, Cairo University, Giza,

² Physics Department, Faculty of Girls, Ain Shams University, Cairo, Egypt. Physics Department, German University (GUC), Cairo, Egypt.

³ Physics Department, Faculty of Girls, Ain Shams University, Cairo, Egypt.

⁴ Physics Department, German University (GUC), Cairo, Egypt.

10.21608/jsrs.2015.19950

Abstract

We report a comparative study of rare-earth ions substituted Bi_0.6Sr_0.4FeO₃(BSFO) crystal for; BSFO, Bi_0.57Sr_0.4Y_0.03FeO₃, Bi_0.57Sr_0.4Nd_0.03FeO₃, Bi_0.57Sr_0.4Ce_0.03FeO₃, and Bi_0.57Sr_0.4La_0.03FeO₃, respectively. The samples were successfully synthesized using flash autocombustion reaction. X-ray diffraction analysis reveals that the crystal structure is rhombohedral and a clear hexagonal grain growth habit is seen by FESEM microstructure. The doping of BSFO improved the magnetic properties specially Y³⁺, Nd³⁺ ions. While Ce³⁺ improved the electrical conductivity. We argue that the addition of RE is likely to suppress the spiral spin modulation and at the same time increase the canting angle which favors the enhanced ferromagnetism.

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