Tailoring Electrical Properties of BiFeO3-BaTiO3 Ceramics via A-site La3+ Substitution：Suppressed Leakage and Enhanced Strain

Key Points

• The research aims to enhance the electrical properties of BiFeO3-BaTiO3 ceramics through La3+ doping.
• Synthesis of BFO-BTO ceramics with different La3+ substitution levels (x = 0, 0.01, 0.03, 0.05, 0.07)
• Implementation of a sol-gel method for ceramic preparation
• Characterization of electrical properties and leakage current
• La3+ doping significantly suppresses leakage currents in the ceramics
• Enhanced strain properties observed with increasing La3+ substitution
• Optimal electrical performance achieved at specific doping levels