Abnormal dynamic behavior in a ferroelectric bilayer film

Cui, Lian; Han, Zhiyou; Xu, Quan; Gao, Yukai; Li, Ruiying; Ren, Yandong; Lü, Tianquan

doi:10.1016/j.spmi.2013.07.011

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…The result is well agreement with Ref. . Furthermore, as the thickness of the system decreases, the lag of the hysteresis loop is more serious.…”

Section: Numerical Results and Discussionsupporting

confidence: 92%

“…We set e 1 = e 2 = e , here e is the uniform external electric field. According to the experiments and relative references, the rescaled electric field e is given as:

e_{j} = e_{normalm} \sin true(\frac{2 π η}{T} true) = e_{normalm} \sin true(2 π f η true) = e_{normalm} \sin true(2 π f Δ η j true),

where e m , T , f are the normalized amplitude, period, and frequency, respectively.…”

Section: The Model and Theorymentioning

confidence: 99%

“…However, their model is step‐like structure varying that will lead to the unphysical pictures. Cui et al have presented a more realistic model to study the dynamic properties of a ferroelectric bilayer by introducing the surface transition layer . But, the two same films were selected to constitute the bilayer.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we modified the well‐established model on basis of Cui's idea to study the polarization switching properties of the ferroelectric heterostructure by introducing a parameter that is used to describe the differences of physical properties between two constituent films. The abnormal switching behavior in the system is discovered under our studies.…”

Section: Introductionmentioning

confidence: 99%

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Anomalous Polarization Switching Characteristics in a Ferroelectric Heterostructure

Cui

Cao

Cui

et al. 2017

Physica Status Solidi (b)

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The polarization switching characteristics of a ferroelectric heterostructure consists of two different ferroelectric films with surface transition layer within each film and a ferroelectric interfacial coupling at the interface between the two films according to Landau–Devonshire theory in combination with Landau–Khalatnikov dynamic equation, as first presented in this work. A parameter β is introduced to describe the differences of physical characteristics between the two constituent films of the ferroelectric heterostructure. We focus on studying the combined influence of parameter β and ferroelectric interfacial coupling on the polarization switching behavior of the system. The evolution with time of polarization, hysteresis loop, and equilibrium action of the ferroelectric coupling ϕ and parameter β are obtained by numerical calculations. The results exhibit some anomalous phenomena.

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“…The result is well agreement with Ref. . Furthermore, as the thickness of the system decreases, the lag of the hysteresis loop is more serious.…”

Section: Numerical Results and Discussionsupporting

confidence: 92%

“…We set e 1 = e 2 = e , here e is the uniform external electric field. According to the experiments and relative references, the rescaled electric field e is given as: