Heat Capacity Study of PMN Near Field—Induced Phase Transition

We have measured the heat capacity of the fast ion conductor PbSnF4 at 10.3 < T < 352 K by adiabatic calorimetry. Our results show anomalous values in the Cp,m in the region 300 < T < 352 K. These are associated with the α–β crystallographic transition reported at 353 K. Because the upper temperature limit of our cryostat is around 354 K, it was impossible to follow the phase transition to completion. A more subtle anomaly in the Cp,m was detected between 130 and 160 K. Standard molar thermodynamic functions are presented at selected temperatures from 5 to 350 K.

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Heat capacity of PMN near an electric-field-induced phase transition

JETP Letters ◽

10.1134/s0021364007060045 ◽

2007 ◽

Vol 85 (6) ◽

pp. 283-285 ◽

Cited By ~ 2

Author(s):

M. V. Gorev ◽

V. S. Bondarev ◽

K. S. Aleksandrov

Keyword(s):

Phase Transition ◽

Heat Capacity ◽

Electric Field

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Heat Capacity in α-β Phase Transition of Quartz

Journal of the Physical Society of Japan ◽

10.1143/jpsj.54.625 ◽

1985 ◽

Vol 54 (2) ◽

pp. 625-629 ◽

Cited By ~ 29

Author(s):

Masahide Matsuura ◽

Haruhiko Yao ◽

Kazutoshi Gouhara ◽

Ichiro Hatta ◽

Norio Kato

Keyword(s):

Phase Transition ◽

Heat Capacity ◽

Β Phase

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Temperature Ferroelastic Phase Transition in Hydroxyapatite. Hydroxyl Solubility, Configuration Heat-Capacity, Hysteresis Effect, Elasticity Modulus

Carbon Nanomaterials in Clean Energy Hydrogen Systems - II - NATO Science for Peace and Security Series C: Environmental Security ◽

10.1007/978-94-007-0899-0_27 ◽

2011 ◽

pp. 325-352

Author(s):

Z. A. Matysina ◽

S. Yu. Zaginaichenko ◽

D. V. Schur ◽

N. A. Shvachko

Keyword(s):

Phase Transition ◽

Heat Capacity ◽

Elasticity Modulus ◽

Hysteresis Effect ◽

Ferroelastic Phase Transition

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On the equipartition theorem and black holes non-Gaussian entropies

Modern Physics Letters A ◽

10.1142/s0217732320502661 ◽

2020 ◽

Vol 35 (32) ◽

pp. 2050266 ◽

Cited By ~ 1

Author(s):

Everton M. C. Abreu ◽

Jorge Ananias Neto ◽

Edésio M. Barboza ◽

Albert C. R. Mendes ◽

Bráulio B. Soares

Keyword(s):

Phase Transition ◽

Black Holes ◽

Heat Capacity ◽

Algebraic Expression ◽

Mathematical Form ◽

Entropy Model ◽

Standard Thermodynamic Functions ◽

Mathematical Expressions ◽

Equipartition Theorem ◽

Non Gaussian

In this letter we have shown that, from the standard thermodynamic functions, the mathematical form of an equipartition theorem may be related to the algebraic expression of a particular entropy initially chosen to describe the black hole event horizon. Namely, we have different equipartition expressions for distinct statistics. To this end, four different mathematical expressions for the entropy have been selected to demonstrate our objective. Furthermore, a possible phase transition is observed in the heat capacity behavior of the Tsallis and Cirto entropy model.

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