Dielectric characteristics of Mg-replaced Pb[(Zn1/3Ta2/3)0.2(Zn1/3Nb2/3)0.6Ti0.2]O3 ceramics

Kim, Jee-Su; Yoo, So-Yeun; Kim, Nam-Kyoung

doi:10.1016/j.materresbull.2003.09.020

Cited by 1 publication

(2 citation statements)

References 17 publications

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“…When the temperature is higher than the Curie temperature, the ferroelectric material will behave as a paraelectric. Therefore, the response of polarization to electric field becomes a nonlinear line rather than a hysteresis loop when the temperature increases to 600 • C. The dependence of the remnant polarization and coercive field on the temperature in figure 2 is consistent with the analytic predictions from Landau theory and many experimental observations [3][4][5][6][7][8][9][10]. room temperature in figures 3(a1)-(a3).…”

Section: Simulation Methodologysupporting

confidence: 83%

“…Due to the complex nature of real experiments, the effects of temperature on the properties of ferroelectric material are inconsistent in different experiments. Based on the conventional mixed-oxide technique, Khemakhema et al [3] measured the polarization hysteresis loops of the BaTi 0.975 (Zn 1/3 Nb 2/3 ) 0.025 O 3 ceramic at different temperatures and found that the remnant polarization and coercive field decrease when the temperature increases from 280 to 330 K. Similar results have been found by many researchers [4][5][6][7][8][9][10], and are reasonable from the thermodynamics point of view.…”

Section: Introductionsupporting

confidence: 68%

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The unusual temperature dependence of the switching behavior in a ferroelectric single crystal with dislocations

Wu¹,

Wang²,

Cao³

et al. 2013

Smart Mater. Struct.

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The unusual temperature-induced switching behavior in a ferroelectric single crystal with dislocation arrays is investigated by using phase field simulations. The results show that the influence of temperature on the hysteresis loop of a ferroelectric is dependent on the dislocation arrays. In the presence of dislocation arrays, the dependence of the coercive field on the temperature is different from that of a dislocation-free ferroelectric. The coercive field increases when the temperature increases from room temperature to a critical temperature, which is attributed to the pinning of domains by the dislocation arrays. Above the critical temperature, both the coercive field and the remnant polarization decrease with temperature. It is found that double hysteresis loops can be induced by dislocation arrays when the temperature is higher than the Curie temperature. This work exhibits the complex role of temperature and dislocations in the polarization switching of ferroelectric single crystal.

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