Particle-size-dependence of magnetoelectric coupling in nano BiFeO3
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This work describes the observations made on particle size dependence of magnetoelectric multiferroic coupling in nanoscale multiferroic BiFeO3 system. By using x-ray and neutron diffraction experiments, the ferroelectric and multiferroic properties have been investigated. It is found that they follow a non-monotonic pattern of variation with particle size in the 20-200 nm range. This non-monotonicity appears to be resulting from competition between lattice microstrain and compressive pressure effect observed in these nanosized particles. The implication of this result could be profound for de...
This work describes the observations made on particle size dependence of magnetoelectric multiferroic coupling in nanoscale multiferroic BiFeO3 system. By using x-ray and neutron diffraction experiments, the ferroelectric and multiferroic properties have been investigated. It is found that they follow a non-monotonic pattern of variation with particle size in the 20-200 nm range. This non-monotonicity appears to be resulting from competition between lattice microstrain and compressive pressure effect observed in these nanosized particles. The implication of this result could be profound for designing nano-spintronic devices using nanoscale BiFeO3.
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