Analysis of the specific heat for the transitions of the phases I-II-III-IV in (N(CH3)4)2CuCl4 crystal

Date

2008-12-01

Author

Yurtseven, Hasan Hamit

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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=59049092562&origin=inward
https://hdl.handle.net/11511/81991

Journal

High Temperature Materials and Processes

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Unverified, Article

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Analysis of the Specific Heat for the Transitions of the Phases I-II-III-IV in (N(CH3)(4))(2)CUCl4 Crystal Yurtseven, Hasan Hamit (2008-01-01) The temperature dependence of the specific heat C-p is analyzed here using the experimental data according to a power-law formula with the critical exponent a for the transitions of commensurate (I), incommensurate (II) and the ferroelastic (III and IV) phases in (N(CH3)(4))(2)CUCl4 crystal. From our analysis, we extract the value of a approximate to 0 above and below T-c for the successive phase transitions of which is expected from the mean field theory (alpha =0 discontinuity), XY model (alpha =0 log) an...
Analysis of the Magnetic Susceptibility as a Function of Temperature for the and Phases of Oxygen Yurtseven, Hasan Hamit (2016-04-24)
Analysis of the Specific Heat in the Supercooled Solid Phase of Liquid Crystals Kilit, Emel; Yurtseven, Hasan Hamit (Informa UK Limited, 2011-01-01) The specific heat Cp is analyzed using the experimental data at various temperatures in the solid phase of cholesteryl myristate according to a power-law formula for the rapidly and slowly cooled solid in the stability limit. We also analyze the temperature dependence of the Cp using the experimental data for the supercooled solid phase of p-azoxyanisole in the stability limit and the stability temperatures are determined for both cholesteryl myristate and p-azoxyanisole.
Analysis of the Spontaneous Polarization and the Dielectric Constant Near the Ferroelectric Phase Transition in TSCC Yurtseven, Hasan Hamit (Informa UK Limited, 2008-01-01) The temperature dependence of the spontaneous polarization and the dielectric constant has been analyzed for the fixed pressures of 0.001,1 and 2.2 kbar close to the phase transitions in TSCC. This analysis is performed using the experimental data for TSCC according to a power-law formula. From our analysis, using the experimental data for the spontaneous polarization, we deduce the values of the critical exponent = 0.32 (1 bar), 0.28 (1 kbar) and 0.26 (2.2 kbar) for the spontaneous polarization near the tr...
Analysis of the Raman Frequency Shifts for the Lattice Modes and Vibrons Related to the Thermodynamic Quantities in the eta Phase of Solid Nitrogen Yurtseven, Hasan Hamit (Walter de Gruyter GmbH, 2013-08-01) The thermodynamic quantities of the isothermal compressibility, thermal expansion and the specific heat are calculated here as a function of pressure by using the observed Raman frequencies of the lattice modes and vibrons in the. phase of solid nitrogen. The Pippard relations and their spectroscopic modifications are constructed, and the slope dP/dT is deduced from the Raman frequency shifts in this phase of N-2. It is shown that the thermodynamic quantities can be predicted from the Raman frequency shifts...

Citation Formats

H. H. Yurtseven, “Analysis of the specific heat for the transitions of the phases I-II-III-IV in (N(CH3)4)2CuCl4 crystal,” High Temperature Materials and Processes, pp. 135–140, 2008, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=59049092562&origin=inward.