Domain freezing in potassium dihydrogen phosphate, triglycine sulfate, and CuAlZnNi

Huang, Yineng; Li, X.; Ding, Yuanfeng; Wang, Y. N.; Shen, Hui; Zhang, Z. F.; Fang, Changshui; Zhuo, Shaoyang; Fung, P. C. W.

doi:10.1103/physrevb.55.16159

Cited by 98 publications

(75 citation statements)

References 33 publications

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“…Huang et al (1997) found evidence of superelasticity in the CuAlZnNi alloy. Kityk et al (2000) systematically compared the elastic behaviour of SrTiO 3 as measured at low frequencies (10±45 Hz) with the results of ultrasonic and Brillouin scattering experiments, which operate in the kHz± GHz range.…”

Section: Domain Walls and Anelasticitymentioning

confidence: 99%

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Ferroelastic phase transitions: structure and microstructure

2004

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Landau-type theories describe the observed behaviour of phase transitions in ferroelastic and co-elastic minerals and materials with a high degree of accuracy. In this review, the derivation of the Landau potential G = 1 2 A S [coth( S /T) À coth( S /T C )]Q 2 + 1 4 BQ 4 + F F F is derived as a solution of the general 0 4 model. The coupling between the order parameter and spontaneous strain of a phase transition brings the behaviour of many phase transitions to the mean-®eld limit, even when the atomistic mechanism of the transition is spin-like. Strain coupling is also a common mechanism for the coupling between multiple order parameters in a single system. As well as changes on the crystal structure scale, phase transitions modify the microstructure of materials, leading to anomalous mesoscopic features at domain boundaries. The mesostructure of a domain wall is studied experimentally using X-ray diffraction, and interpreted theoretically using Ginzburg±Landau theory. One important consequence of twin mesostructures is their modi®ed transport properties relative to the bulk. Domain wall motion also provides a mechanism for superelastic behaviour in ferroelastics. At surfaces, the relaxations that occur can be described in terms of order parameters and Landau theory. This leads to an exponential pro®le of surface relaxations. This in turn leads to an exponential interaction energy between surfaces, which can, if large enough, destabilize symmetrical morphologies in favour of a platelet morphology. Surface relaxations may also affect the behaviour of twin walls as they intersect surfaces, since the surface relaxation may lead to an incompatibility of the two domains at the surface, generating large strains at the relaxation. Landau theory may also be extended to describe the kinetics of phase transitions. Time-dependent Landau theory may be used to describe the kinetics of order±disorder phase transitions in which the order parameter is homogeneous. However, the time-dependent Landau theory equations also have microstructural solutions, explaining the formation of microstructures such as tweed.

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Section: Domain Walls and Anelasticitymentioning

confidence: 99%

“…Examples include the softening of c 66 in KD 2 AsO 4 (Fally et al, 1995), and internal friction measurements in KDP, DKDP and TGS (Huang et al, 1997). Bourim et al (2002) have observed anelastic behaviour in PZT, associated with the ferroelectric domains.…”

Section: Domain Walls and Anelasticitymentioning

confidence: 99%

Ferroelastic phase transitions: structure and microstructure

2004

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“…In particular, this is an effect of a sharp decrease of the dielectric constant with lowering temperatures below a certain value. It must be mentioned that a similar behavior is typical of many ferroelectrics: KDP [1], PbTiO 3 [2], SBN [2]. In most cases it was attributed to a freezing of domain walls dynamics.…”

Section: Introductionmentioning

confidence: 99%

“…In most cases it was attributed to a freezing of domain walls dynamics. This phenomenon was very intensively studied in the crystals of KDP family (see references in the paper [1]). An analysis of the relaxation dispersion observed in polydomain TGS crystals far below T c in the ferroelectric phase [1] reveals that the domain freezing effect occurs in this material as well.…”

Section: Introductionmentioning

confidence: 99%

“…This phenomenon was very intensively studied in the crystals of KDP family (see references in the paper [1]). An analysis of the relaxation dispersion observed in polydomain TGS crystals far below T c in the ferroelectric phase [1] reveals that the domain freezing effect occurs in this material as well. Therefore, it is obvious that the freezing of the domain walls motion is a rather characteristic property for polydomain ferroelectrics.…”

Section: Introductionmentioning

confidence: 99%

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Dielectric Relaxation and Freezing Effect in Sn_2p_2s_6

Maior¹,

Molnar²,

Vrabel³

et al. 2003

Condens. Matter Phys.

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The temperature-frequency studies of dielectric susceptibility in Sn 2 P 2 S 6 , Sn 2 P 2 Se 6 , (Pb y Sn 1−y ) 2 P 2 Se 6 and crystals at low temperatures are reported. The freezing relaxation dynamics has been observed in a temperature-frequency dependence of the dielectric properties in the crystals which are in a polydomain ferroelectric state as well as in the crystals (Pb y Sn 1−y ) 2 P 2 Se 6 with y > 0.4 which at low temperatures are in the incommensurate phase. The nature of the effect and its interrelation with dynamics of ferroelectric domain walls and incommensurate structure is discussed.

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Dielectric and Ferroelectric Properties of Layered Phosphorus Chalcogenide Crystals

Džiaugys

Banys

2022

Van Der Waals Ferroelectrics

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Domain freezing in potassium dihydrogen phosphate, triglycine sulfate, and CuAlZnNi

Cited by 98 publications

References 33 publications

Ferroelastic phase transitions: structure and microstructure

Ferroelastic phase transitions: structure and microstructure

Dielectric Relaxation and Freezing Effect in Sn_2p_2s_6

Dielectric and Ferroelectric Properties of Layered Phosphorus Chalcogenide Crystals

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