Magnetoelectric fatigue of Ho-doped Bi₅Ti₃FeO₁₅ films under the action of bipolar electrical cycling

Abstract

Pure and Ho-doped Bi5Ti3FeO15 magnetoelectric films were prepared by a sol–gel method, and the influence of bipolar electrical cycling on the ferroelectric, leakage and magnetoelectric properties of the films were studied in detail.

Enhanced piezoelectric properties of Mn‐modified Bi5Ti3FeO15 for high‐temperature applications

“…On the other hand, the ferroelectricity implies that BTF is a piezoelectric material, because a ferroelectric must be a piezoelectric. However, in recent years, the magnetoelectric effects of BTF have received much attention, rather than its piezoelectric effects . Accordingly, it is necessary to analyze and further improve the piezoelectric performance of BTF.…”

“…However, in recent years, the magnetoelectric effects of BTF have received much attention, rather than its piezoelectric effects. [14][15][16][17][18][19] Accordingly, it is necessary to analyze and further improve the piezoelectric performance of BTF.…”

Archives of Metallurgy and Materials

“…Increased holmium concentration causes a significant reduction in grain size. Yu Long Bai et al [13] have found that the grain size reduction in holm-doped materials can be interpreted by the suppression of oxygen vacancy concentration due to the charge compensation mechanism, which ultimately results in slower oxygen ion motion and consequently lower grain growth rate. This behaviour is typical for Aurivillius bismuth layered compounds due to the preferential growth of the ab crystalline plane.…”

Progress and Perspectives on Aurivillius-Type Layered Ferroelectric Oxides in Binary Bi4Ti3O12-BiFeO3 System for Multifunctional Applications

“…The ion substitution would influence the inter-strain and tolerance factor. The A-site can be occupied by large cations such as Na + [20], K + [107], Ca 2+ [108], Sr 2+ [46], Ba 2+ [26], Pb 2+ [109], Y 3+ [21], Bi 3+ and Ln (La [27], Nd [22], Sm [23], Gd [24], Ce [110][111][112],Tb [25], Dy [113], Ho [114], Er [115,116], Eu [56], Yb, Th [117], Pr [118]), the B-site can accommodate hetero-valent elements (Ti 4+ , W 6+ [36], Nb 5+ [43], Ta 5+ [119], V 5+ , Cu 2+ [120], Mo 6+ [121], and Mg 2+ [43]) and a variety of magnetic elements (Fe, Cr, Mn, Co, and Ni) [32][33][34][35][36][37][38][39][40][41][42][43][44]52], which will create the possibility of magnetic ordering. More interestingly, the halogen or nitrogen elements substitution on the O-sites was accomplished [122,123].…”