Mn dopant on the “domain stabilization” effect of aged BaTiO3 and PbTiO3-based piezoelectrics

Zhang, Lixue; Liu, Wenfeng; Chen, Wei; Ren, Xiaobing; Sun, Jun; Gurdal, Erkan A.; Ural, Seyit O.; Uchino, Kenji

doi:10.1063/1.4770311

Cited by 43 publications

(23 citation statements)

References 26 publications

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“…18,22 The meanings of the parameters E 1 and E 2 are described as following. When a modest electric field is applied, the FE domains will switch with P S reorientation (green thick arrow).…”

Section: Resultsmentioning

confidence: 99%

External field effects on aging phenomenon of acceptor-doped BaTiO3 ceramics

et al. 2015

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Our experiments on ferroelectric aging phenomena of a series of acceptor-doped BaTiO3 ceramics demonstrate that after well-aging, all samples show a similar double hysteresis loop under smaller applied electric field, regardless of ionic radius or ionic valence of the acceptor. However, with increasing the applied electric field, the completely constricted loops gradually start to open, indicating the aging effect becomes weak under larger electric field. The unified microscopic mechanism responsible for the similar aging behavior in different acceptor-doped BaTiO3 ceramics may be that the larger field is considered to kinetically facilitate a part of oxygen vacancies short-range hopping. As a result, the defect dipole field provided by oxygen vacancies and the associated defect dipoles frozen in the original states decreases, thus contributing to the weaker aging effect.

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Section: Resultsmentioning

confidence: 99%

External field effects on aging phenomenon of acceptor-doped BaTiO3 ceramics

et al. 2015

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“…The mechanism can be attributed to the effect of the symmetry-conforming principle of point defects [3]. An internal bias field is present in the poling direction after aging in poled ferroelectrics, leading to strong asymmetric P-E loops and polarization-electric field strain (S-E) loops [4,5]. Continuous operating electric field is avoided for keeping a stable strain output in materials with strain memory effect [6], which is advantageous for some actuator applications.…”

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confidence: 99%

Defect-dipole alignment and strain memory effect in poled Li doped (Bi0.5Na0.4K0.1)0.98Ce0.02TiO3 ceramics

Shi

Fan

Liu

et al. 2015

J Mater Sci: Mater Electron

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Asymmetric ferroelectric hysteresis (P-E) loops and strain hysteresis (S-E) curves are detected in poled-aged Li doped (Bi 0.5 Na 0.4 K 0.1 ) 0.98 Ce 0.02 TiO 3 ceramics at room temperature. Temperature dependence of electrical and structural analysis is used to study the stability of electrically induced long-range ferroelectric order. Interestingly, this asymmetric characteristic can sustain at 80°C B T B 90°C, where the ferroelectric and non-ergodic relaxor phase coexist. Our results suggest that the preferentially reoriented defect dipoles have the pinning effect on temperature-and electric field-induced phase transition between long-range ferroelectric and relaxor.The aging effect is the time-dependent change of materials in ferroelectric, dielectric and piezoelectric characteristics [1,2]. A large recoverable electro-strain that stems from the reversible domain switching, accompanying with double polarization-electric field (P-E) hysteresis loop, has been observed in many aged acceptor perovskite ferroelectric materials. The mechanism can be attributed to the effect of the symmetry-conforming principle of point defects [3]. An internal bias field is present in the poling direction after aging in poled ferroelectrics, leading to strong asymmetric P-E loops and polarization-electric field strain (S-E) loops [4,5]. Continuous operating electric field is avoided for keeping a stable strain output in materials with strain memory effect [6], which is advantageous for some actuator applications.Bi 0.5 Na 0.5 TiO 3 (BNT) based material have attracted great attention after the recent discovery of the large strain [7][8][9][10][11], which is associated with the reversible phase transitions between relaxor and ferroelectric [12][13][14]. Recently, Fe-doped BNT-BaTiO 3 are reported to present aging effects in the poled state, but are absent in the relaxor state [15]. However, the effect of acceptor doping in BNT based material still need be further studied, due to the existence of relaxors phase with special polar structure at virgin state and the unique field-and temperature-induced phase transition in it. In this paper, strain memory effects are reported in Li 2 CO 3 doped (Bi 0.5 Na 0.4 K 0.1 ) 0.98 Ce 0.02 TiO 3 ceramics. The thermally stimulated depolarization currents (TSDC), temperature-dependent dielectric performance and X-ray diffraction (XRD) are measured to identify the influence of defect dipole on temperature-induced ferroelectric to relaxor phase transition. The asymmetric P-E and S-E loops at a broad temperature range are discussed to clarify the effect of defect dipole on fieldinduced relaxor to ferroelectric phase transition.The 0.5 mol % Li 2 CO 3 doped (Bi 0.5 Na 0.4 K 0.1 ) 0.98 Ce 0.02 TiO 3 (Li, Ce-BNKT) ceramics were prepared by a conventional solid state reaction technique sintered at 1150°C for 4 h. The P-E and S-E loops were measured at 1 Hz using a ferroelectric test unit (TF-2000, aix-ACCT, Aachen, Germany) for 30-120°C. During the polarization procedure, the samples were heated to a polari...

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“…Usually, such kind of aging-associated property requires an aging treatment. In either case, a long aging time (from hundreds of to thousands of hours) is necessary to ensure a stable performance9121314. Thus there need much work to predict the lifespan of the physical properties.…”

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confidence: 99%

“…Many researchers dedicate to study the lead zirconate titanate (PZT) family1215, the barium titanate (BT) family689131416171819202122 and some other lead-free compositions23 to develop reasonable theories to explain the aging phenomenon. There are three theories that have been proposed: grain boundary effect, domain wall effect and volume effect58.…”

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confidence: 99%

“…There are three theories that have been proposed: grain boundary effect, domain wall effect and volume effect58. From these aging theories, the “strength” of aging effect can be controlled by choosing type of the doping ions and the base system1321. However, the effective ways or compositions to reduce aging time, and mostly importantly, to fast reach the stability time of the properties remain awaiting.…”

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confidence: 99%

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Rapid stability of ferroelectric polarization in the Ca, Ce hybrid doped BaTiO3 ceramics

Liu

Zhang

Wang

et al. 2016

Sci Rep

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In this work, we report a rapid stability phenomenon of ferroelectric polarization in the Ca, Ce hybrid doped BaTiO3 ceramics (BCaxT+BTCe8) (x = 10, 20, 24, 30 mol%) prepared by separate doping Ca2+ and Ce4+ ions. Double hysteresis loops are identified in the aged BCaxT+BTCe8 samples; meanwhile, the polarization of these loops present a rapid decrease within very short aging time (about 1 h), and then the polarization remains almost unchanged over the followed ~1000 h. This phenomenon is not reported in previous researches. Raman scattering spectrum indicates that oxygen vacancies are generated because of Ca2+ ions entering into Ti sites partly in the BCaxT+BTCe8 samples, and then the oxygen vacancies are quantitatively characterized by half of the Ce3+ content through the XPS test. The emergence of the aging phenomenon is explained through the defect dipole reorientation mechanism. The larger radius of Ca2+ ions is further discussed as a possible reason for the rapid stability phenomenon of ferroelectric polarization. It may provide an effective design method from the viewpoint of the ionic radius to accelerate polarization stability, and thus to facilitate the possible practical applications of the aging effect.

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Mn dopant on the “domain stabilization” effect of aged BaTiO3 and PbTiO3-based piezoelectrics

Cited by 43 publications

References 26 publications

External field effects on aging phenomenon of acceptor-doped BaTiO3 ceramics

External field effects on aging phenomenon of acceptor-doped BaTiO3 ceramics

Defect-dipole alignment and strain memory effect in poled Li doped (Bi0.5Na0.4K0.1)0.98Ce0.02TiO3 ceramics

Rapid stability of ferroelectric polarization in the Ca, Ce hybrid doped BaTiO3 ceramics

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