Domain configuration evolution, dielectric, ferroelectric and piezoelectric properties of 0.32PIN–0.345PMN–0.335PT single crystals

Excellent ferroelectric and pyroelectric performance of rhombohedral Mn‐doped PIMNT thin films with (111) orientation

“…To fabricate high‐quality and high‐performance Mn‐PIMNT(36/36/28) thin films, (111)‐oriented SrTiO 3 (STO) single crystal were used as substrates and pulsed laser deposition (PLD) method was utilized. The lattice parameters and thermal expansion coefficient of PIMNT single crystals ( a = 4.037Å and thermal expansion coefficient = 9.3×10 – 6 K – 1 ) were similar to those of STO ( a = 3.905Å and thermal expansion coefficient = 9.4×10 – 6 K – 1 ) and SrRuO 3 (SRO) ( a = 3.923Å and thermal expansion coefficient = 10.3×10 – 6 K – 1 ), which was helpful for grain growth 15–19 . Also, a systematic study of the influence of oxygen pressure and substrate temperature on film structure and electrical properties was performed.…”

“…The lattice parameters and thermal expansion coefficient of PIMNT single crystals (a = 4.037Å and thermal expansion coefficient = 9.3×10 -6 K -1 ) were similar to those of STO (a = 3.905Å and thermal expansion coefficient = 9.4×10 -6 K -1 ) and SrRuO 3 (SRO) (a = 3.923Å and thermal expansion coefficient = 10.3×10 -6 K -1 ), which was helpful for grain growth. [15][16][17][18][19] Also, a systematic study of the influence of oxygen pressure and substrate temperature on film structure and electrical properties was performed. Results indicated that the obtained Mn-PIMNT thin films exhibited comparable pyroelectric properties but better thermal stability than that of PMNT film and had higher p and F i than the PZT film for uncooled infrared focal plane arrays (UFPA) applications.…”

“…When the temperature raised to 200℃, there was no obvious deformation of the hysteresis loop, indicating that the films had good temperature A survey of the published literature shows that process modeling of CMCs has been studied by a number of researchers. Processes that have been modeled include RMI, 15,16 CVD, 17,18 CVI, [19][20][21][22] and Sol-Gel Infiltration. 23 Impregnation of alumina matrix in eight-harness satin Nextel 610 fabric has been studied numerically in Ref.…”

Achieving single domain in rhombohedral and tetragonal Mn‐doped Pb(In1/2Nb1/2)‐Pb(Mg1/3Nb2/3)‐PbTiO3 crystals for infrared detecting applications

“…In theory, when the polarizer/analyzer is parallel to the [001] reference direction, the tetragonal Mn:PIMNT(29/29/42) crystals will be in extinction since six possible domains are at 0° extinction angle, but they do not show obvious extinction phenomenon. Such peculiar phenomenon can be attributed to the existence of high density of fine domain walls with lower symmetry . Thus, the single state of whether the rhombohedral Mn:PIMNT(15/55/30) crystal or the tetragonal Mn:PIMNT(29/29/42) crystal under different poling conditions can be justified according to the degree of the extinction.…”

Composition design of PMN-PH-PT piezoelectric ceramics for high-temperature actuator applications

“…However, the typical T C temperature is 193°C for the commercial PZT5H ceramics, which is relatively low and can not meet the requirements of the above applications [8,9]. High T C piezoelectric single crystals, some present excellent piezoelectricity but the T C is not high enough [10], and some have small piezoelectric constant (d 33 ) although possess high T C temperature, i.e., 6 pC N −1 and 1210°C of LiNbO 3 [11], whereas their crystal growth is all expensive and difficult, which restricts the applications in electronic and electrical devices. High T m ceramics such as BiScO 3 and Bi(Ni 1/2 Ti 1/2 )O 3 -based system, their preparation process is also difficult; furthermore, their leakage current is too large due to the evaporation of some elements during sintering, leading to polarization difficulty and limiting their applications [4,5,12].…”