High-temperature solution growth of Pb(Fe0.5Nb0.5)O3 and Pb(Mn0.5Nb0.5)O3 crystals

Ferroic transitions in the multiferroic (1 −x)Pb(Fe1/2Nb1/2)O3–xPbTiO3 system and its phase diagram

“…Further, it has been argued in the recent years that the MPB effects in the PbTiO 3 -based solid solutions are essentially due to the stabilization of the MPB of pure PbTiO 3 observed at high pressure to ambient pressure by Zr 4+ , Mg 2+ /Nb 5+ , Zn 2+ /Nb 5+ substitutions [28]. The PFN-xPT system is unique as one of its end members, PFN, has already been reported to undergo a monoclinic to tetragonal phase transition at $355 K [29][30][31][32], whereas the other end member, PT, shows a tetragonal to monoclinic transition at high pressures at room temperature [28].…”

Flux growth and characterization of single crystals of the perovskites Pb2FeTaO6 and Pb2CoWO6

“…The choice of PbO as flux [14,24] was justified as being a very good high-temperature solvent for these perovskites and itself a component of them which avoids introducing foreign ions into the lattice of the grown crystals. The chief disadvantages are its toxicity and its high volatility above 1000°C which required sealing of the crucible to avoid weight loss.…”

Structure of (001)-, (110)-, and (111)-oriented Pb(Fe1/2Nb1/2)O3 epitaxial thin films on SrRuO3-buffered SrTiO3 substrates

“…The C and T phases are commonly accepted as established; however, in recent years, the existence of the R phase has become more controversial. Bonny et al 3 and Lampis et al 9 reported PFN crystals to be monoclinic (M) at room temperature, whereas other neutron 10 and single-crystal 7,8 studies again reported it to be R.…”

“…1,[4][5][6] Later, PFN single crystals were grown, and a ferroelectric → ferroelectric phase transformation was reported at 353K. 7 Using highresolution x-ray diffraction (XRD), Ehses and Schmid showed that the ferroelectric → ferroelectric transformation was T → R, 8 where the T phase is sandwiched between C and R ones over a narrow temperature region (40 K) on cooling below T c . The C and T phases are commonly accepted as established; however, in recent years, the existence of the R phase has become more controversial.…”