Fig. 1: Ferroelectric ordering in Bi1−xLaxFeO3.
From: Manipulating magnetoelectric energy landscape in multiferroics
a Schematic for the energy landscape of the phase transition induced by lanthanum substitution in BiFeO3 described by Landau theory. b Schematic for the ferroelectric polarization rotation (from BiFeO3: [111]pc to Bi0.85La0.15FeO3: [112]pc) and suppression of ferroelectric polarization induced by lanthanum substitution in BiFeO3. c P-E measurements for different substitution levels of lanthanum in 100-nm-thick BiFeO3 films. d The schematics illustrate the evolution of crystal symmetry of bismuth ferrite (rhombohedral) to lanthanum ferrite (orthorhombic).
