Tunable magnetic behavior and structure property correlation in YBi₁₋ₓLaₓO₃ (0.00 ≤ x ≤ 0.05): A pathway to nanomagnetic application

The synthesis of both pristine and lanthanum (La)-doped YBiO₃ (YBO) samples was efficiently carried out via the co-precipitation approach.Yttrium nitrate, bismuth nitrate and lanthanum nitrate salts experienced a chemical reaction at pH 8 and 60 °C temperature, forming a nanometer-sized precipitates, which took polycrystalline form after calcination treatment. The X-ray diffraction examination revealed that these particles existed in single phase and possess face centered cubic (FCC) structure. SEM microscopy elucidated a steady growth in grain size as the concentration of lanthanum was raised. Evolution of magnetic properties in YBi_1-xLa_xO₃(0.00 ≤x ≤ 0.05) specimens have been investigated using MPMS SQUID magnetometer. The thermo-magnetization data study suggested the presence of magnetic domains within YBi_1-xLa_xO₃ (0.00 ≤ x ≤ 0.05). Moreover, magnetic hysteresis loop measurements performed at 2 K also showed existence of weak ferromagnetism in YBi_1-xLa_xO₃ (0.00 ≤ x ≤ 0.05).