Effects of annealing atmosphere on microstructure, electrical properties and domain structure of BiFeO3 thin films

Influence of sintering temperature on structural, morphological and optical properties of nanocrystalline bismuth ferrite thin films via sol-gel processing

“…This characteristic property makes it viable to influence electric polarization by magnetic field or to control magnetism by electric field for potential applications in low cost highly sensitive magnetometers, memory devices, spintronics devices, sensors, magnetically controlled transducers, etc. [1,2]. Bismuth ferrite (BFO) is a room-temperature multiferroic material having Tc ~ 1103 K & TN ~ 643K having potential applications in various ways.…”

Nanostructure stabilization by low-temperature dopant pinning in multiferroic BiFeO3-based thin films produced by aqueous chemical solution deposition

“…23 Changing the dopant formulation, Liu et al increased this polarization to 55 mC cm À2 , also reporting a remnant magnetization (M r ) of about 15 emu mol À1 . 24 Actually, the range of multiferroic properties reported using the CSD methodology is very wide (P r fluctuating between 3 and 77 mC cm À2 , M r between 9 and 80 emu mol À1 ), [25][26][27] which in a way indicates that the mechanism by which it is possible to stabilize the perovskite phase at low temperature is not yet properly described. Accordingly, the aim of the present contribution is to address the possibility of designing microstructural development capable of controlling the multicomponent BiFeO 3 system but facing the low temperature restrictions imposed by thin film processing.…”

Láminas delgadas de materiales multiferroicos basados en BiFeO3 procesadas en medio acuoso

“…En cambio en las láminas con composición NdTiBFO8 y TiBFO8 dicha distorsión de la celda es menor (Figura 5.18) lo que desemboca en la obtención de valores de polarización remanente inferiores. Sea como fuere, los valores de polarización obtenidos en estas láminas se encuentran dentro del rango recientemente descrito por otros autores para láminas de BiFeO 3 con composiciones similares y procesadas a partir de métodos en disolución equivalentes (polarizaciones entre 3 y 30 µC/cm 2 , [104,219,242,243]). Valores superiores de hasta 100 µC/cm 2 tan solo son posibles bien en monocristales o bien trabajando con láminas epitaxiales obtenidas por métodos físicos de deposición, [30,111,117,135] i.e.…”