Ferroelectric and ferromagnetic properties of $BiFeO_3-PrFeO_3-PbTiO_3$ solid solutions

$BiFeO_3-PrFeO_3-PbTiO_3$계의 강자성-강유전 특성

Synthesis of the ferroelectromagnetic material exhibiting ferromagnetism and ferroelectricity simultaneously has been an interesting subject due to not only for a possible application in electronic devices but also from the view point of solid state physics. In this study bulk ceramics and thin films of xBiFeO$_3$-yPrFeO$_3$-zPbTiO$_3$(x+y+z=1) and (1-w)BiFeO$_3$-wPbTiO$_3$ have been explored for finding ferroelectromagnetic material, in which ferroelectricity and ferromagnetism coexist simultaneously. (omitted)