Samarium modified strontium bismuth niobate: Synthesis and ferroelectro-magnetic property evaluation

Synthesis of a new electroceramic by replacement of Bi in strontium bismuth niobate

“…Due to high conductivity of the samples, the higher electric fields could not be employed. The loop shapes observed are similar to that in SBN [11], but the magnitude of the polarization is lower. The observed loops for these materials are similar to bismuth layer structured ferroelectric materials, but the value of the polarization is quite low.…”

“…Figure 1 shows the experimental X-ray data (in open circles), Reitveld pattern (in dark circles), and intensity differences along with the indexed peaks. From our previous studies on the partial replacement of bismuth with samarium in the general formula of SrBi 2−x Sm x Nb 2 O 9 , with x having values of 0.25, 0.5, 0.75 and 1, a single phase was formed with orthorhombic distortion [11]. Similarly, when we totally replaced the bismuth ion with rare earth ions-Sm, Gd and Dy, a single phase was attained.…”

“…In another previous work, we observed magnetoelectricity as a result of the incorporation of rare earths at B-site in BIT [10]. In a recent report, we synthesized Samarium modified SBN with a general formula of SrBi 2−x Sm x Nb 2 O 9 (with x ranges from 0 to 1) [11]. As a continuation of this work, we will attempt to replace the total bismuth with the rare earth ions and study the structural aspects, ferroelectric nature, and magnetic nature to finally achieve magnetoelectricity.…”

Room temperature multiferroic properties and magnetoelectric coupling in Sm and Ni substituted Bi4−xSmxTi3−xNixO12±δ (x = 0, 0.02, 0.05, 0.07) ceramics

“…It is reported that Sm substitution improves the ferroelectric and magnetic properties of the layered structured compounds. 24,25 According to our knowledge, no report has been yet so far published on co-substitution of Sm and Ni in the BIT. In the present work, we have comprehensively studied the structural, dielectric, electrical, ferroelectric, magnetic, and magnetoelectric properties of Bi 4Àx Sm x Ti 3Àx Ni x O 126d (x ¼ 0, 0.02, 0.05, and 0.07) ceramics at room temperature.…”

Electrical and ferroelectric studies of the 2-layered SrBi2Ta2O9 based ceramics

“…Among numerous BLSF systems such as Bi 4 Ti 3 O 12 (BIT), SrBi 2 Nb 2 O 6 (SBN), SrBi 2 Ta 2 O 9 (SBT), SrBi 4 Ti 4 O 15 etc., SBT is the most prominent one. SBT system possesses excellent electrical properties with fatigue resistance up to 10 12 cycles [11][12][13][14]. In the SBT system, two perovskite-like TaO 6 octahedron units are present in between the (Bi 2 O 2 ) 2+ layers along the c-axis.…”