ORCID "TR11797" Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed için listeleme
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Analysis of the thermal expansivity near the tricritical point in dilute chromium alloys
Yurtseven, Hamit; Tarı, Özlem (American Institute of Physics, 2016)Chromium (Cr) undergoes a first order Neel transition as an antiferromagnetic material. When V, Mo and Mn atoms are substituted in the Cr lattice, a weak first order Neel transition in pure Cr changes toward a second order ... -
Calculation of the Raman frequencies as a function of pressure in the solid phases II and III (III’) of benzene
Yurtseven, Hamit; Tarı, Özlem (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
Tarı, Özlem; Yurtseven, Hamit (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. ... -
Calculation of the Raman frequency shifts for the ? phase of solid oxygen
Yurtseven, Hamit; Tarı, Özlem (Elsevier, 2017)We calculate in this study the Raman frequencies of the two librons and one vibron at various pressures at constant temperatures of 10 K and also at the temperatures of 6 and 18 K by using the volume data from the literature ... -
Calculation of the soft-mode frequency for the alpha – beta transition in quartz
Yurtseven, Hamit; Tarı, Özlem (Elsevier, 2016)The ? – ß structural transition occurs in quartz at TC = 846 K. The frequency of the soft mode associated with the volume increase, decreases with increasing temperature as the transition temperature is approached. In this ... -
Molar volume calculated at various pressures and the Pippard relations close to the melting point in benzene
Yurtseven, Hamit; Tarı, Özlem (Taylor & Francis, 2016)The molar volume of solid and liquid benzene was calculated at various pressures (at constant temperatures), and the Pippard relations were examined close to the melting point in this organic molecule. The molar volume ... -
Pippard relation close to the alpha - beta transition for quartz in granite
Yurtseven, Hamit; Tarı, Özlem; Gümüş, Ayşegül (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. ... -
Pressure effect on the cholesteric – smectic A transition in cholestryl myristate
Yurtseven, Hamit; Yolal, B.; Tarı, Özlem (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 ... -
Raman frequencies calculated at various pressures in phase I of benzene
Tarı, Özlem; Yurtseven, Hamit (KCS Publications, 2013)We calculate in this study the pressure dependence of the frequencies for the Raman modes of A (Ag), B (Ag, B2g) and C (B1g, B3g) at constant temperatures of 274 and 294K (room temperature) for the solid phase I of benzene. ... -
Temperature effect on the structural ferroelectric – paraelectric transition in Li2Ge7O15
Yurtseven, Hamit; Tarı, Özlem (Taylor & Francis, 2016)Li2Ge7O15 (LGO) undergoes the ferroelectric – paraelectric transition at Tc D283.5K. The crystal structure of LGO is orthorhombic with the four formula units in the unit cell in the paraelectric phase (T < TC) . The ... -
Variation of the molar volume with the temperature and the Pippard relations near the melting point in benzene
Tarı, Özlem; Yurtseven, Hamit (Elsevier, 2016)In this study, we calculate variation of the molar volume with the temperature at constant pressures (70.5, 85.2, 128 and 175.2 MPa) using the experimental data from the literature for the solid and liquid phases of benzene ...