Regular behaviour of solid solutions of KH2(1−n)D2nPO4 single crystals

Březina, B.; Fousková, A.; Smutný, F.

doi:10.1002/pssa.2210110260

Cited by 31 publications

(2 citation statements)

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“…The degree of deuteration was estimated to be 82% using the relation between T c and the deuteration content given by Brezina. 3 The direction perpendicular to ͑110͒ face was oriented through the morphology of the crystal and the sample in the form of a cylinder ͑3.02 mm thick and 10.5 mm in diameter͒ was prepared. The base of the cylinder coincides with ͑110͒ face which allows application of uniaxial pressure xy to the sample.…”

Section: The Experimental Approachmentioning

confidence: 99%

“…When KDP is deuterated ͑DKDP crystal͒, both the transition enthalpy and transition temperature increase 3 with the degree of deuteration. When KDP is 100% deuterated, a first order transition occurs at 220 K. The polarization, which is considered the order parameter, the shear strain u xy and the birrefringence ⌬n xy are proportional to each other.…”

Section: Introductionmentioning

confidence: 99%

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First order transitions by conduction calorimetry: Application to deuterated potassium dihydrogen phosphate ferroelastic crystal under uniaxial pressure

Gallardo

Jiménez

Koralewski

et al. 1997

Journal of Applied Physics

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The specific heat c and the heat power W exchanged by a Deuterated Potassium Dihydrogen Phosphate ferroelectric-ferroelastic crystal have been measured simultaneously for both decreasing and increasing temperature at a low constant rate (0.06 K/h) between 175 and 240 K. The measurements were carried out under controlled uniaxial stresses of 0.3 and 4.5±0.1 bar applied to face (110). At Tt=207.9 K, a first order transition is produced with anomalous specific heat behavior in the interval where the transition heat appears. This anomalous behavior is explained in terms of the temperature variation of the heat power during the transition. During cooling, the transition occurs with coexistence of phases, while during heating it seems that metastable states are reached. Excluding data affected by the transition heat, the specific heat behavior agrees with the predictions of a 2-4-6 Landau potential in the range of 4–15 K below Tt while logarithmic behavior is obtained in the range from Tt to 1 K below Tt. Data obtained under 0.3 and 4.5 bar uniaxial stresses exhibit the same behavior.

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Section: The Experimental Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

First order transitions by conduction calorimetry: Application to deuterated potassium dihydrogen phosphate ferroelastic crystal under uniaxial pressure

Gallardo

Jiménez

Koralewski

et al. 1997

Journal of Applied Physics

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Crystal Growth of Deuterated KDP and Determination of the Deuterium Content

Havránková¹,

Březina²

1974

Cryst Res and Technol

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EPR investigations of solid solutions of TSCC and TSCB doped with Mn²⁺

Treeck

Windsch

1978

Cryst Res and Technol

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Dedicated to Professor Hermann NEELS on the occasion of his 65th birthday EPR investigations of Mnz+-doped solid solutions of TSCC and TSCB were performed between 4.2 K and 300 K. The Curie temperature vs. molar fraction of bromide x is nonlinear, for z 2 0.75 no ferroelectric EPR-line splitting occurs. The relation between the line widths and the molar fraction of bromide is discussed by means of a simple statistical model.An festen Losungen von Mn2+-dotiertem TSCC und TSCB wurden zwischen 4,2 K und 300 K EPR-Untersuchungen durchgeftihrt. Die Abhiingigkeit der Curie-Temperatur vom molaren Bromidgehalt z ist nichtlinear, fur z 2 0,75 tritt keine der spontanen Polarisation proportionale EPR-Linien-Aufspaltung mehr auf. Die Beziehung zwischen der Linienbreite und dem molaren Bromidgehalt wird mit Hilfe eines einfachen statistischen Modells diskutiert.

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Regular behaviour of solid solutions of KH2(1−n)D2nPO4 single crystals

Cited by 31 publications

References 4 publications

First order transitions by conduction calorimetry: Application to deuterated potassium dihydrogen phosphate ferroelastic crystal under uniaxial pressure

First order transitions by conduction calorimetry: Application to deuterated potassium dihydrogen phosphate ferroelastic crystal under uniaxial pressure

Crystal Growth of Deuterated KDP and Determination of the Deuterium Content

EPR investigations of solid solutions of TSCC and TSCB doped with Mn²⁺

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Regular behaviour of solid solutions of KH2(1−n)D2nPO4 single crystals

Cited by 31 publications

References 4 publications

First order transitions by conduction calorimetry: Application to deuterated potassium dihydrogen phosphate ferroelastic crystal under uniaxial pressure

First order transitions by conduction calorimetry: Application to deuterated potassium dihydrogen phosphate ferroelastic crystal under uniaxial pressure

Crystal Growth of Deuterated KDP and Determination of the Deuterium Content

EPR investigations of solid solutions of TSCC and TSCB doped with Mn2+

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Product

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EPR investigations of solid solutions of TSCC and TSCB doped with Mn²⁺