Saturation magnetization and band gap tuning in BiFeO$_3$ nanoparticles via co-substitution of Gd and Mn

Mehedi Hasan; M. A. Basith; M. A. Zubair; Md. Sarowar Hossain; Rubayyat Mahbub; M. A. Hakim; Md. Fakhrul Islam

doi:10.1016/j.jallcom.2016.06.171

paper

Saturation magnetization and band gap tuning in BiFeO $_{3}$ nanoparticles via co-substitution of Gd and Mn

arXiv:1607.00158 · doi:10.1016/j.jallcom.2016.06.171

Abstract

In this investigation, Gd and Mn co-doped Bi $_{0.85}$ Gd $_{0.15}$ Fe $_{1 - x}$ Mn $_{x}$ O $_{3}$ (x=0.0-0.15) nanoparticles have been prepared to report the influence of co-substitution on their structural, optical, magnetic and electrical properties. Due to simultaneous substitution of Gd and Mn in BiFeO $_{3}$ , the crystal structure has been modified from rhombohedral (R3c) to orthorhombic (Pn21a) and the Fe-O-Fe bond angle and Fe-O bond length have been changed. For Mn doping up to 10 % in Bi $_{0.85}$ Gd $_{0.15}$ Fe $_{1 - x}$ Mn $_{x}$ O $_{3}$ nanoparticles, the saturation magnetization (Ms) has been enhanced significantly, however, for a further increase of doping up to 15 %, the Ms has started to reduce again. The co-substitution of Gd and Mn in BiFeO $_{3}$ nanoparticles also demonstrates a strong reduction in the optical band gap energy and electrical resistivity compared to that of undoped BiFeO $_{3}$ .

7, in Journal of Alloys and Compounds, June 2016

Saturation magnetization and band gap tuning in BiFeO3​ nanoparticles via co-substitution of Gd and Mn

Abstract

References in corpus (2)

Saturation magnetization and band gap tuning in BiFeO $_{3}$ nanoparticles via co-substitution of Gd and Mn