Coexistence of ferroelectricity and magnetism in transition-metal-doped n = 3 aurivillius phases

Sharma, N; Kennedy, BJ; Elcombe, MM; Liu, Y; Ling, CD

Coexistence of ferroelectricity and magnetism in transition-metal-doped n = 3 aurivillius phases

Date

2008-01-16

Authors

Publisher

Institute of Physics

Abstract

Magnetic-cation-doped three-layer Aurivillius phases Bi2-xSr2+x(Nb/Ta)(2+x)M1-xO12, x approximate to 0.5 and M = Ru4+, Ir4+ or Mn4+, are shown to have the same orthorhombic space group symmetry and similar dielectric and ferroelectric properties as their (non-magnetic) ferroelectric parent compounds Bi2-xSr2+xNb2+xTi1-xO12, x = 0, 0.5. The magnetic-cation-doped phases also show evidence for short-range ferromagnetic (M = Mn) and antiferromagnetic (M = Ru and Ir) exchange, demonstrating the potential of these naturally layered phases as templates for multiferroic (magnetoelectric) materials. © 2008, Institute of Physics

Keywords

Ferroelectric materials, Magnetism, Symmetry, Doped materials

Citation

Sharma, N., Kennedy, B. J., Elcombe, M. M., Liu, Y., & Ling, C. D. (2008). Coexistence of ferroelectricity and magnetism in transition-metal-doped n = 3 aurivillius phases. Journal of Physics: Condensed Matter, 20(2), 025215. doi:10.1088/0953-8984/20/02/025215