Recent Developments on Relaxor-PbTiO3 Ferroelectric Crystals

Abstract

Numerous investigations on the development of the relaxor-PbTiO3 ferroelectric crystals have been carried out since their extraordinary properties were revealed. Recent developments on these crystals have offered further advances in electromechanical applications. In this review, recent developments on relaxor-PbTiO3 crystals and their practical applications are reviewed. The single crystal growth methods are first discussed. Two different strategies, poling and doping, for piezoelectric improvement are surveyed in the following section. After this, the anisotropic features of the single crystals are discussed. Application perspectives arising from the property improvements for electromechanical devices are finally reviewed.

Growth of Mn-doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal boule with MnO content gradient along growth direction using continuous-feeding Bridgman method and MnO content dependence of ferroelectric and piezoelectric properties

“…On the otherhand, the continuousfeeding Bridgman growth method which is able to better control the composition has been developed to reduce compositional segregation. [23][24][25][26][27] However, the continuousfeeding Bridgman method has only been applied to improving compositional uniformity so far.…”

Overview of the Structural, Electronic and Optical Properties of the Cubic and Tetragonal Phases of PbTiO3 by Applying Hubbard Potential Correction

“…Perovskite-type ABO 3 (A = Ba, Sr, Pb) oxides’ crystal structure as well as their physical and optical characteristics have been thoroughly explored recently, owing to their widespread development and their functional properties suitable for many technological applications [ 1 , 2 , 3 ]. In particular, PbTiO 3 itself has been frequently and intensively studied due to its excellent physical properties, which makes it a promising material for a variety of applications, including ferroelectric memory cells [ 4 , 5 ], optoelectronic devices [ 6 , 7 ], dielectric capacitors [ 8 ], electromechanical devices [ 9 , 10 ] and pyroelectric applications [ 11 ].…”

Glassy Properties of the Lead-Free Isovalent Relaxor BaZr0.4Ti0.6O3

“…Since the 1960s, relaxor ferroelectrics have remained in the scientific focus because of their exceptional physical properties [1], such as high dielectric permittivity, large polarization and pyroelectricity, and significant electromechanical response [2][3][4][5][6][7]. Recently, it was shown that they also possess large caloric properties [8][9][10].…”