Critical behaviour and internal bias of TGS and isomorphous crystals depending on growth conditions

Tsedrik, M. S.; Zaborovski, G. A.

doi:10.1002/crat.19760110408

Cited by 9 publications

(2 citation statements)

References 1 publication

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“…bias in TGS was reported for crystals grown in the ferroelectric phase even in the absence of dopants (Shaulov and Simhony 1976). Accidental impurities in the solution of growth may be responsible for the internal bias since the lower the growth temperature the higher the internal bias detected in the crystal (Tsedrik and Zaborowski 1976). As shown by JaSkiewicz (1965) the bias is generated because of the electric charges occurring on domain boundaries which slightly influences the coercive field of the crystal.…”

Section: Pyroelectric Coeficientmentioning

confidence: 99%

Investigation of the pyroelectric and piezoelectric properties of triglycine sulphate single crystals containing organic molecules

Gaffar¹,

El‐Fadl²

1989

J. Phys.: Condens. Matter

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The pyroelectric coefficient and the piezoelectric modulus of triglycine sulphate (TGS) single crystals doped with d-l-alanine, orthonitroaniline, paranitroaniline or aniline molecules has been measured from room temperature up to the transition point. The data are compared with those which the authors have previously obtained on pure TGS. A noticeable increase in the value of the pyroelectric coefficient of the doped samples over the whole temperature range is observed. A significant pyroelectric signal is still detected several degrees above the transition point of pure crystals. The spontaneous polarisation is calculated using data for the measured pyroelectric current. The piezoelectric modulus of the doped crystals reaches its maximum value at a temperature lower than the Curie point of pure TGS before it decreases steadily to zero. A relation between the piezoelectric modulus and the temperature just before the maximum value is deduced. The role of the internal bias created in the crystal after doping is also discussed

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Section: Pyroelectric Coeficientmentioning

confidence: 99%

Investigation of the pyroelectric and piezoelectric properties of triglycine sulphate single crystals containing organic molecules

Gaffar¹,

El‐Fadl²

1989

J. Phys.: Condens. Matter

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“…Triglycine sulphate crystals (TGS) with large applications as a pyroelectric material was intensively studied in relation with its growing conditions (MARECEK, NOVAK;TSEDRIK et al 1975TSEDRIK et al , 1976MALEK et al). However, growth kinetics at large supersaturations were not performed, except (001) type face (REISS et al).…”

Section: Introductionmentioning

confidence: 99%

Growth and Kinetic Measurements of Triglycine Sulphate Crystals

Alexandru¹,

Berbecaru²

1995

Cryst. Res. Technol.

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Synthesis and two-step recrystallisation have been used to produce TGS basic substance, Kinetic measurements have been performed for (110)-type face on a large scale of supersaturations up to about 3%. Evidences of impurity influence for small supersaturation and the "coverage" effect has been estimated.La substance TGS de base a it6 obtenue par synthirse et double recristallisation. La vitesse de croissance de la surface (1 10) du cristal TGS a ete mesuree pour un large domaine des sursaturations jusqu'au 3%. On a presente des preuves concernant l'influence des impurete et on a erstimk l'effet de "couverture".

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Pyroelectric properties of TGS with internal bias field

Pykacz

1978

Phys. Stat. Sol. (a)

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Pyroelectric properties of triglycine sulphate (TGS) grown at ferroelectric phase as a function of temperature are reported. Measurements are performed on virgin samples during cooling. It is shown that the degree of unipolarity of the sample is equal to one at short‐circuit condition and below one when the depolarization field is comparable with the internal bias field. The value of the internal bias field is also determined.

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Critical behaviour and internal bias of TGS and isomorphous crystals depending on growth conditions

Cited by 9 publications

References 1 publication

Investigation of the pyroelectric and piezoelectric properties of triglycine sulphate single crystals containing organic molecules

Investigation of the pyroelectric and piezoelectric properties of triglycine sulphate single crystals containing organic molecules

Growth and Kinetic Measurements of Triglycine Sulphate Crystals

Pyroelectric properties of TGS with internal bias field

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