Nd-substituted SrBi2Ta2O9 ferroelectric thin films prepared by radio frequency magnetron sputtering

Relationship between Crystal Structures and the Relaxor Property of SrBi2(Ta2–xVx)O9 Ceramics

“…13,14 Li et al indicated that when Nd 3+ is substituted into the bismuth-layered perovskite structure of SBT by magnetron sputtering, the remnant polarization (2Pr) improves and coercive field reduces. 15 Coondoo et al reported the addition of tungsten (W) in SBT at the B-site to form SrBi 2 (Ta 1– x W x ) 2 O 9 and observed effective improvement in the dielectric, electrical, ferroelectric, and piezoelectric properties. 16…”

“…The substitution of Ca 2+ , Bi 3+ , Pr 3+ , Nd 3+ , and La 3+ with Sr 2+ , whose radii are similar, at the A-site of SBT ceramics was widely investigated, and considerable modification of the polarization properties was observed. Pérez et al reported the enhanced polarization properties of Ca 2+ -substituted SBT compounds. , Li et al indicated that when Nd 3+ is substituted into the bismuth-layered perovskite structure of SBT by magnetron sputtering, the remnant polarization (2Pr) improves and coercive field reduces . Coondoo et al reported the addition of tungsten (W) in SBT at the B-site to form SrBi 2 (Ta 1– x W x ) 2 O 9 and observed effective improvement in the dielectric, electrical, ferroelectric, and piezoelectric properties …”

Effect of strontium concentration on structural, dielectric and electrical properties of Ba5−xSrxDyTi3V7O30 (x=0–5) ceramics

“…Shifting of diffraction peaks in comparison to pure compound (i.e., x = 0) is clearly observed (given in Table 1) along with a change in orthorhombic lattice parameters. This may be attributed to the structural distortion due to the mismatch of ionic radii of Ba and Sr ions [18,19].…”

Densification and dielectric properties of strontium bismuth tantalate ceramics

“…6,7 SrBi 2 Ta 2 O 9 films have been successfully prepared by several processes such as physical vapour deposition, metal organic decomposition, metal organic chemical deposition, sol-gel process, and metal organic chemical vapour deposition. [8][9][10][11][12][13] For depositing SrBi 2 Ta 2 O 9 thin films via physical vapour processes, it is important to prepare densified SrBi 2 Ta 2 O 9 target ceramics. However, SrBi 2 Ta 2 O 9 is hardly sintered at elevated temperatures since high temperature sintering leads to thermal decomposition of SrBi 2 Ta 2 O 9 .…”