Observation of Ferroelectric Domain Structure in TGS

Nakatani, N.

doi:10.1080/00150193.2011.554269

Cited by 37 publications

(29 citation statements)

References 130 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this report, the effects of microstructure of domains (point defects) on the ferroelectric properties are established experimentally in rather different classes of ferroelectric materials, in well studied conventional ferroelectrics TGS and SBN relaxor crystals. Despite its complicated chemical and crystallographic form, TGS exhibit a wide range of features indispensable for understanding very basic features of the mechanism of polarization switching [2]. Compared to conventional TGS, a unique property of relaxor SBN is the appearance of a very broad and frequency-dependent dielectric anomaly near the ferroelectric phase transition [3].…”

Section: Introductionmentioning

confidence: 99%

Comparison of polarization switching in ferroelectric TGS and relaxor SBN crystals

Matyjasek¹,

Orłowski²

2013

Condens. Matter Phys.

View full text Add to dashboard Cite

The comparative experimental analysis of polarization reversal kinetics in conventional homogeneous triglycine sulfate ((NH 2 CH 2 COOH) 3 ·H 2 SO 4 ; TGS) and relaxor strontium barium niobate (Sr 0.61 Ba 0.39 Nb 2 O 6 ; SBN) crystals have been performed in a broad range of measurement conditions. The experimental data have been collected from microscopic observation of the domain structure, switching current and D −E hysteresis loop registration.The hysteresis loop and dielectric spectra have a strong link to the configuration of ferroelectric microdomains. The domain structure dynamics was examined by the nematic liquid crystal (NLC) method.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparison of polarization switching in ferroelectric TGS and relaxor SBN crystals

Matyjasek¹,

Orłowski²

2013

Condens. Matter Phys.

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4][5] Pyroelectric IR detectors based on TGS family of crystals provide high figures of merit, but handling difficulties associated with their water solubility, hygroscopic nature and fragility have limited their use to single element detectors and vidicons, where sensitivity is of prime importance. Pyroelectric sensors based on TGS are uniformly sensitive to radiation in wavelength range from ultraviolet to far infrared and do not require cooling for operation.…”

Section: Introductionmentioning

confidence: 99%

Triglycine sulphate and its deuterated analog in polyurethane matrix for thermal/infrared detection: A comparison

Sudhakaran

Philip

2015

J of Applied Polymer Sci

View full text Add to dashboard Cite

Composites comprising of polycrystalline triglycine sulphate (TGS) or its deuterated analog (DTGS) in powder form dispersed in polyurethane (PU) are synthesized for pyroelectric sensor applications. TGS and DTGS have high pyroelectric coefficients, but are susceptible to humidity, and PU is inherently electroactive. So composites made of TGS or DTGS dispersed in PU can be expected to have high pyroelectric coefficient as well as immunity to humidity. Composites with inclusion volume fraction between 0 and 0.25 are prepared, and their dielectric, pyroelectric, and thermal properties measured. In general, deuteration leads to decrease in dielectric constant and specific heat, but increase in thermal conductivity. The pyroelectric coefficient and figures of merit get enhanced significantly with deuteration as well as inclusion volume fraction. Comparison with similar composites shows that these samples have the highest values for figures of merit, indicating their potential use as thermal/infrared detectors that are immune to humidity.

show abstract

“…Most of these techniques are surface sensitive, e.g., scanning probe microscopy (SPM), scanning electron microscopy, pyroelectric probe microscopy, powder deposition, application of nematic liquid crystals, and etching. A review about these techniques and their application on TGS has been presented by Nakatani . Other techniques allow for projections of the domain structure, e.g., X‐ray diffraction, optical diffraction, polarization microscopy, and non‐confocal second‐harmonic generation microscopy .…”

mentioning

confidence: 99%

“…Due to its pure second‐order phase transition, TGS is a model ferroelectric material to study ferroelectric phase transitions. Moreover, being a very suitable pyroelectric detector material, TGS is one of the most studied ferroelectric materials: all surface sensitive techniques mentioned above have been applied to TGS . Some of these techniques, especially the liquid crystal method and SPM, have even been used to investigate the phase transition at TGS’ Curie temperature of T C = 49 °C = 322 K …”

mentioning

confidence: 99%

See 1 more Smart Citation

In Situ 3D Observation of the Domain Wall Dynamics in a Triglycine Sulfate Single Crystal upon Ferroelectric Phase Transition

Wehmeier

Kämpfe

Haußmann

et al. 2017

Physica Rapid Research Ltrs

View full text Add to dashboard Cite

We present the first in situ 3D observation of domain wall dynamics close to a ferroelectric–paraelectric phase transition, which we obtain via second‐harmonic generation microscopy (SHGM). Showing a pure second‐order phase transition at its Curie temperature of 49 °C, triglycine sulfate (TGS) is a model ferroelectric material to study such phase transitions. After annealing, in TGS various qualitatively different domain patterns, e.g., stripes or small lenticular domains, have been reported so far. By applying SHGM, we can show that these findings do not necessarily contradict each other. In fact, qualitatively different domain patterns may coexist in the same TGS sample at the same time.

show abstract

Observation of Ferroelectric Domain Structure in TGS

Cited by 37 publications

References 130 publications

Comparison of polarization switching in ferroelectric TGS and relaxor SBN crystals

Comparison of polarization switching in ferroelectric TGS and relaxor SBN crystals

Triglycine sulphate and its deuterated analog in polyurethane matrix for thermal/infrared detection: A comparison

In Situ 3D Observation of the Domain Wall Dynamics in a Triglycine Sulfate Single Crystal upon Ferroelectric Phase Transition

Contact Info

Product

Resources

About