Specific heat of pbmg1/3pnb2/3o3

Fousková, A.; Kohl, V.; Kraǐnik, N. N.; Myl'nikova, I.E.

doi:10.1080/00150198108238709

Cited by 15 publications

(5 citation statements)

References 5 publications

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“…This dependence of ΔS on the square of the order parameter can be quite useful if the order parameter is not a measurable quantity. It provides for proportionality of ΔC/T with temperature derivatives of all quantities quadratically coupled with the order parameter even when they do not belong to the compliance matrix, like the spontaneous birefringence [23]. Since the linear birefringence increment δ(Δn) a P, then the temperature derivative of linear birefringence d(Δn)/dT oc ΔC/T.…”

Section: δ(δNb)(t)mentioning

confidence: 99%

On Linear Birefringence Anomalies in Crystals of Triglycine Family

Przesławski

1999

Acta Phys. Pol. A

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Temperature dependence of the linear birefringence in TGS crystal family has been studied with a high temperature resolution. Temperature derivatives of the linear birefringence are compared with the specific heat transients measured for triglycine sulphate, triglycine selenate, and triglycine fluoberyllate crystals. Detailed studies revealed an anomaly of the linear birefringence at about 310 K for two cuts (a*-and c-cut) of the TGS crystal.

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Section: δ(δNb)(t)mentioning

confidence: 99%

On Linear Birefringence Anomalies in Crystals of Triglycine Family

Przesławski

1999

Acta Phys. Pol. A

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“…For simplicity we shall suppose that the currents are perpendicular to the boundary and we shall forget an anisotropy of the material. The polarization current and conductive current satisfy on the boundary of two arbitrary materials the condition dDl/dt-dDz/dt= -( j i -j 2 ) , (8) where D is the electric displacement. Now we specify the results for the contact of <<good metal.…”

Section: = (St) + (6t) + (O't)p Andmentioning

confidence: 99%

“…At the time interval 7 this heat flow changes the temperature of the layer the thickness of which corresponds to the temperature wavelength hT = v-. The balance of energy gives [4,7,8]. Considering x"/xM = 4*10-3 and using (11) and 6E = 106V/m, we obtain the theoretical value of the contribution to the dielectric Peltier effect as (6T)p = = 10-5K if the thermal resistance of the layers between sample and metal cylinder were neglected.…”

Section: = (St) + (6t) + (O't)p Andmentioning

confidence: 99%

Observation of the “Dielectric Peltier Effect”

et al. 1993

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The theoretically predicted appearance of the temperature difference between the opposite sides of charging or discharging capacitors was observed for the first time. The capacitor of ferroelectric PbMg1/3Nb2/3O3 crystal with Ni electrodes was charged applying the field to E = 106 V/m with the time constant ≈ 10−5 s. The temperature difference at 300 K reached ≈ 10−4 K. The theoretical analysis of a “generalized Peltier effect” at the boundary of two arbitrary materials is done and it is shown that the experimental result can be considered as a “dieletric Peltier effect”.

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“…5,6 The thermal properties of PMN were investigated in some works beginning in Ref. 7. Here the diffused anomaly of heat capacity was discovered in the region of frequency-dependent peak of the dielectric permittivity (250-280 K) by means of differential scanning calorimetry.…”

Section: Introductionmentioning

confidence: 99%

Specific heat of a PIN-PMN-PT single-crystal up to 500K

et al. 2017

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The temperature dependence of the specific heat of the single crystal Pb(In 0:5 Nb 0:5 )O 3 -Pb(Mg 1=3 Nb 2=3 )O 3 -PbTiO 3 (PIN-PMN-PT) was obtained at 80-500 K by means of ac-calorimetry, and comparison with the calorimetric data for PMN was made, allowing one to determine absolute values of the specific heat of PIN-PMN-PT. For the high-temperature region (T > 200 K), the background heat capacity was calculated, the anomalies of the heat capacity for both compounds were determined, and the hump of the temperature dependence of specific heat PIN-PMN-PT was detected for the first time.

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Specific heat of pbmg_1/3pnb_2/3o₃

Cited by 15 publications

References 5 publications

On Linear Birefringence Anomalies in Crystals of Triglycine Family

On Linear Birefringence Anomalies in Crystals of Triglycine Family

Observation of the “Dielectric Peltier Effect”

Specific heat of a PIN-PMN-PT single-crystal up to 500K

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