A way to enhance the magnetic moment of multiferroic bismuth ferrite

Authors

Zhenxiang Cheng, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow
Yi Du, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

32911

Publication Details

Cheng, ZX, Wang, XL, Du, Y & Dou, SX (2010), A way to enhance the magnetic moment of multiferroic bismuth ferrite, Journal of Physics D: Applied Physics, 43(24), pp. 1-5.

Abstract

Transition metals, including Co, Cr, Ni and Mn, were doped into multiferroic Bi_0.8La_0.2Nb_0.01Fe_0.99O₃ samples that were fabricated by a solid state reaction. X-ray diffraction results show that only the Mn-doped sample did not contain any impurity phases, while the other transition metal dopants destroyed the phase stability of the pure Bi_0.8La_0.2Nb_0.01Fe_0.99O₃ phase and caused the formation of second phases. All the transition metal doped Bi_0.8La_0.2Nb_0.01Fe_0.99O₃ samples show significant enhancement in their magnetic moment at room temperature in comparison with the BiFeO₃ and Bi_0.8La_0.2Nb_0.01Fe_0.99O₃ samples without transition metal doping. This is explained by the formation of local ferrimagnetic ordering or ferromagnetic ordering in the transition metal doped Bi_0.8La_0.2Nb_0.01Fe₀.₉₉O₃, according to the electron configurations of the dopant transition metal ions.