Pressure-induced structural phase transitions in the multiferroic four-layer Aurivillius ceramic Bi5FeTi3O15

Structural transformation in Mn-substituted Sr2Bi2Ta2TiO12 Aurivillius phase synthesized by hydrothermal method: A comparative study and dielectric properties

“…1b [26]. This distortion results in the break of inversion of the parent tetragonal structure, consequently giving rise to an orthorhombic structure [27].…”

Resilience of the Aurivillius structure upon La and Cr doping in a Bi5Ti3FeO15 multiferroic

“…Since the rutile phase has a Raman-active phonon mode at 235 cm −1 , 70 we attribute the 262 cm −1 feature to the torsional bending of TiO 6 octahedra, as previously reported. 27,[71][72][73] An influence from the rutile titania octahedral bending and stretching modes is seen at 332 cm −1 too. The proximity of this vibration to the strong Bi 2 O 3 line at 314 cm −1 implies an additional contribution from the bending modes of distorted BiO 6 subunits.…”

“…The latter Raman vibration is specific to iron incorporation into bismuth-layered oxides with titanium-based octahedra. 73 Another association with rutile titania is at 848 cm −1 , which consists of an upshifted vibration from the characteristic phonon mode of TiO 2 at 826 cm −1 . 70 The vibrations seen in the higher frequency region in the Raman spectrum of 75 A direct method to induce multiferroicity into the lattice of Bi 4 Ti 3 O 12 is to dope magnetic atoms in it.…”

Layered Perovskites BaLnnInnO3n+1 (n = 1, 2) for Electrochemical Applications: A Mini Review

“…Layered perovskites can be classified as Ruddlesden–Popper, Dion–Jacobson and Aurivillius structures. The last two are mostly represented by materials with photocatalytic [ 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 ], ferroelectric [ 54 , 55 , 56 , 57 , 58 ] and luminescent [ 59 , 60 , 61 , 62 , 63 ] properties. In this paper, we focused on the proton-conducing layered perovskites with a Ruddlesden-Popper structure, which represent a large novel class of proton-conducting materials.…”