Temperature Dependence of the Spontaneous Polarization Near the Ferroelectric-Paraelectric Transition in NaNO2

Date

2013-02-01

Author

Sarikaya, C. Kusoglu
Yurtseven, Hasan Hamit

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

63
views

0
downloads

The paraelectric-ferroelectric transition in NaNO2 is studied using the Levanyuk-Sannikov and the mean field models which we have developed here. From both models, the temperature dependence of the spontaneous polarization is derived and is fitted to the experimental data from the literature.

Subject Keywords

Physical and Theoretical Chemistry, General Materials Science, Mechanics of Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/37514

Journal

HIGH TEMPERATURE MATERIALS AND PROCESSES

DOI

https://doi.org/10.1515/htmp-2012-0066

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Temperature Dependence of The Raman Frequency Shifts Related to The Specific Heat and Thermal Expansion Close To I-II Phase Transition in S-Triazine. KURT, MUSTAFA; Yurtseven, Hasan Hamit (Walter de Gruyter GmbH, 2010-01-01) A linear variation of the specific heat C-p with the frequency shifts 1/omega(partial derivative omega/partial derivative T)(p) is established for the Raman modes I-V at various temperatures (P=0) close to I-II phase transition in s-triazine (T-c=198 K).
Critical Behaviour of the Heat Capacity Near the alpha-beta Phase Transition in Quartz Yurtseven, Hasan Hamit (Walter de Gruyter GmbH, 2013-04-01) The alpha-beta transition ( T-Q = 578 degrees C) is studied in quartz by analyzing the experimental heat capacity C-p data taken from the literature, using a power-law formula. Values of the critical exponent alpha for C-p are extracted below and above T-Q, which describe the alpha-beta transition as a second order transition in quartz. The alpha values obtained here are compared with the predictions of the theoretical models.
Temperature dependent band gap in SnS2xSe(2-2x) (x=0.5) thin films Delice, S.; Isik, M.; Gullu, H. H.; Terlemezoglu, M.; Surucu, O. Bayrakli; Hasanlı, Nızamı; Parlak, Mehmet (Elsevier BV, 2020-08-01) Structural and optical properties of SnS2xSe(2-2x) thin films grown by magnetron sputtering method were investigated for composition of x = 0.5 (SnSSe) in the present study. X-ray diffraction, energy dispersive X-ray spectroscopy, atomic force microscopy and scanning electron microscopy methods were used for structural characterization while temperature-dependent transmission measurements carried out at various temperatures in between 10 and 300 K were accomplished for optical investigations. X-ray diffract...
Calculation of the Raman Linewidths of Lattice Modes Close to the alpha-beta Transition in Quartz Lider, Mustafa Cem; Yurtseven, Hasan Hamit (Walter de Gruyter GmbH, 2012-12-01) The Raman frequencies of the lattice modes (147 cm(-1) and 207 cm(-1)) are analyzed for the alpha-beta transition in quartz according to a power-law formula with the critical exponent by using the experimental data. The temperature dependence of the Raman frequency is associated with the order parameter (polarization P) for this transition in the quartz crystal.
Some peculiarities of nematic-isotropic liquid phase transitions in monomorphic and polymorphic mesogens Nesrullajev, Arif; Yurtseven, Hasan Hamit; Saliholu, Selami; Kazanc, Nadide (Elsevier BV, 2002-10-03) In this study, the dynamics of the changes of the morphological properties in the nematic mesophase and in the heterophase regions of the phase transitions between the nematic mesophase and the isotropic liquid for the thermotropic mesogens have been investigated. Experimentally, we have obtained the thermal hysteresis for the investigated phase transitions. For the analysis of the phase transition temperatures and the peculiarities of the heterophase regions, the mean field theory has been used.

Citation Formats

C. K. Sarikaya and H. H. Yurtseven, “Temperature Dependence of the Spontaneous Polarization Near the Ferroelectric-Paraelectric Transition in NaNO2,” HIGH TEMPERATURE MATERIALS AND PROCESSES, pp. 77–81, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37514.