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Now showing items 11-18 of 18

#### Pippard relation close to the alpha - beta transition for quartz in granite

(American Institute of Physics, 2016)

In this study, we examine variation of the thermal expansion ?p with the isothermal compressibility KT at various temperatures (1 atm) close to the ?-ß transition in quartz using the experimental data from the literature. ...

#### Calculation of the thermodynamic quantities of perovskite metal organics DMAKCr and perovskite HyFe close to the weakly first-order relaxor-like structural transformation using the mean field theory

(World Scientific Pub., 2019-04-30)

Weakly first-order or nearly second-order phase transitions occurring in metal{organic frameworks (MOFs), particularly in DMAKCr and perovskite HyFe, are studied under the mean field model by using the observed data from ...

#### Pressure effect on the cholesteric – smectic A transition in cholestryl myristate

(Taylor & Francis, 2016)

Cholesteryl myristate exhibits tricritical behavior under high pressures close to its cholesteric-smectic A (Ch/SA) transition, as observed experimentally. We study here the thermodynamic properties of this liquid crystal ...

#### Calculation of the Raman frequencies as a function of pressure in the solid phases II and III (III’) of benzene

(Springer, 2013)

We calculate here the Raman frequencies of the lattice modes A(Ag), B(B2g) and C(B1gB3g) as a function of pressure at room temperature for the solid phases (II, III and III’) of benzene. This calculation is performed using ...

#### Calculation of the Raman frequencies as a function of temperature in phase I of benzene

(Journal of Indian Chemical Society, 2013)

This study gives our calculation of the Raman frequencies of the lattice modes A (A1g), B (AgB2g) and C (B1gB3g) as a function of temperature at constant pressures of 0, 1.4 and 3.05 GPa for the solid phase I of benzene. ...

#### Pressure dependence of the heat capacity near the melting point in benzene

(Elsevier Science, 2017)

The heat capacity C-p is calculated as a function of pressure at constant temperatures of 25, 40 and 51 degrees C for the solid and liquid phases of benzene near the melting point. For this calculation, the observed molar ...

#### Analysis of vibrational spectra in relation to the thermodynamic quantities close to the phase transitions in ammonium halides (NH4F and NH4I)

(Elsevier, 2017)

The pressure dependences of the vibrational frequencies of the TO and L modes are analyzed from the literature data and the thermodynamic quantities such as isothermal compressibility K gamma, thermal expansion alpha p and ...

#### Calculation of the spontaneous polarization for Pb1-xCaxTiO3 close to the tricritical point

(Taylor & Francis, 2016)

We calculate the spontaneous polarization as a function of temperature for a mixed crystal of Pb1-xCaxTiO3 close to the tricritical pointdx (x = 0.4). This calculation of the spontaneous polarization is performed using the ...