Room Temperature Ferrimagnetism and Ferroelectricity in Strained, Thin Films of BiFe_0.5Mn_0.5O₃.

ABSTRACT: Highly strained films of BiFe_0.5Mn_0.5O₃ (BFMO) grown at very low rates by pulsed laser deposition were demonstrated to exhibit both ferrimagnetism and ferroelectricity at room temperature and above. Magnetisation measurements demonstrated ferrimagnetism (T_C ∼ 600K), with a room temperature saturation moment (M_S ) of up to 90 emu/cc (∼ 0.58 μ_B /f.u) on high quality (001) SrTiO₃. X-ray magnetic circular dichroism showed that the ferrimagnetism arose from antiferromagnetically coupled Fe³⁺ and Mn³⁺. While scanning transmission electron microscope studies showed there was no long range ordering of Fe and Mn, the magnetic properties were found to be strongly dependent on the s

SUBMITTER: Choi EM 

PROVIDER: S-EPMC4511393 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature