Static Freezing Transition at a Finite Temperature in a Quasi-One-Dimensional Deuteron Glass

Hemberger, J.; Ries, H.; Loidl, A.; Böhmer, Roland

doi:10.1103/physrevlett.76.2330

Cited by 57 publications

(47 citation statements)

References 21 publications

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“…Namely, the scaling theory of the second order phase transition predicts that ⌬ dc should vanish at the ferroelectric transition and diverges at the freezing transition in dipolar glasses, as indeed observed in the experimental results. 30 Thus, according to the obtained results at the present work, for the SBN75/25 thin films when applying a dc bias electric field, and taking into account the above presented discussion, the observed anomalies for lower magnitudes of the applied dc electric field in the temperature dependence of ⌬ dc ͑Fig. 7͒ can be a true experimental evidence of the FIG.…”

Section: B DC Nonlinear Dielectric Responsesupporting

confidence: 83%

Investigation of nonlinear dielectric properties in Sr0.75Ba0.25Nb2O6 relaxor ferroelectric thin films

Guerra

Mendes

Eiras

et al. 2008

Journal of Applied Physics

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The ac and dc driving fields dependence of the dielectric permittivity for the strontium barium niobate relaxor ferroelectric thin films has been investigated. The nonlinear dielectric properties were obtained by using the measurements of the dielectric permittivity of the material as a function of the ac and dc "bias" electric field amplitude in wide frequency ͑100 Hz-10 MHz͒ and temperature ͑50-450 K͒ intervals. The results hint the existence of a true mesoscopic dielectric relaxor response in the ferroelectric thin film, which is very similar to those observed in bulk relaxor ferroelectrics. An anomalous behavior of the NL dielectric response was observed when submitted to moderate dc electric fields levels, indicating a crossover from paraelectric to a glasslike behavior on cooling the sample toward the freezing transition. The obtained results were analyzed within the framework of the models proposed in the current literature.

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Section: B DC Nonlinear Dielectric Responsesupporting

confidence: 83%

Investigation of nonlinear dielectric properties in Sr0.75Ba0.25Nb2O6 relaxor ferroelectric thin films

Guerra

Mendes

Eiras

et al. 2008

Journal of Applied Physics

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“…13. This seems to indicate a divergence as T → T g and f → 0 as predicted by theory (Binder & Reger, 1992), but has rarely been evidenced on orientational glasses (Hemberger et al, 1996). At the lowest frequency, f = 37 Hz, a fairly sharp peak is encountered, whose high-T branch might be considered as a critical hyperbola.…”

Section: Multiglass Sr 098 Mn 002 Tiomentioning

confidence: 97%

“…At the lowest frequency, f = 37 Hz, a fairly sharp peak is encountered, whose high-T branch might be considered as a critical hyperbola. Excess noise, however, prevents from seriously fitting a critical exponent, which should be close to γ = 1 as found previously (Hemberger et al, 1996). However, since the nonlinear susceptibility is modified by non-diverging ferroic (viz.…”

Section: Multiglass Sr 098 Mn 002 Tiomentioning

confidence: 99%

Non-Linear Dielectric Response of Ferroelectrics, Relaxors and Dipolar Glasses

Miga¹,

Dec²,

Kleemann³

2011

Ferroelectrics - Characterization and Modeling

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“…Betaine arsenate (BA), 3 [12] mixed-crystal systems are absent in this system [4,6]. Further, the nature of the different mixed phase regions, transitions and relaxations of the phase diagram that reveal themselves in the measurements of the temperature and frequency dielectric function is still unclear and difficult to explain from the obtained structural [13,14] and spectroscopic data [4].…”

Section: Methodsmentioning

confidence: 94%

Polarization behavior in systems with competing ferroelectric and antiferroelectric interactions

Milhazes

Lanceros-Méndez

Cadilhe

2005

Physica Status Solidi (b)

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The dielectric hysteresis loop constitutes the main feature indicative of the properties of a ferroelectric material, but in complex systems with ferro-and antiferroelectric interactions, the hysteresis loops are often multiple. In the present work, we introduce a model based on the coexistence of ferro-and antiferroelectric regions, which can describe the aforementioned multiple loops. Based on our model, simulated multiple hysteresis loops are in good agreement with experimental results. Hysteresis loops obtained from our model are sensitive to the relative values of the ferro-and antiferroelectric coupling constants, domain size, and temperature. The model describes well systems without the presence of frustration as it is the case of-. In the case of systems exhibiting frustration like e.g. , we present a straightforward extension of our model.

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Static Freezing Transition at a Finite Temperature in a Quasi-One-Dimensional Deuteron Glass

Cited by 57 publications

References 21 publications

Investigation of nonlinear dielectric properties in Sr0.75Ba0.25Nb2O6 relaxor ferroelectric thin films

Investigation of nonlinear dielectric properties in Sr0.75Ba0.25Nb2O6 relaxor ferroelectric thin films

Non-Linear Dielectric Response of Ferroelectrics, Relaxors and Dipolar Glasses

Polarization behavior in systems with competing ferroelectric and antiferroelectric interactions

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