Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Calculation of a generalised smectic–hexatic phase diagram in liquid crystals
Date
2012-5
Author
Yurtseven, Hasan Hamit
Metadata
Show full item record
Item Usage Stats
150
views
0
downloads
Cite This
This study gives a generalised smectic-hexatic phase diagram calculated by the Landau mean field theory. Our calculated phase line equations are fitted to the experimental phase lines, which represent first-order transition for the liquid crystals studied here. The temperature-and concentration-dependent phase lines calculated in this study describe the observed T-X phase diagram for the smectic-hexatic transitions. This indicates that the method of calculating the phase line equations from the mean field theory is general and it can be applied to other phase transitions in liquid crystals.
Subject Keywords
Phase diagram
,
Smectic-hexatic transitions
,
Liquid crystals
URI
https://hdl.handle.net/11511/28365
Journal
Physics and Chemistry of Liquids
DOI
https://doi.org/10.1080/00319104.2011.590987
Collections
Department of Physics, Article
Suggestions
OpenMETU
Core
Calculation of the phase diagram using the Landau-mean-field theory for K2S2O7-KHSO4
Sen, S.; Yurtseven, Hasan Hamit (Elsevier BV, 2009-03-15)
In this study a T-X phase diagram of K2S2O7-KHSO4 is calculated using the Landau-mean-field theory. By expanding the free energies of the solid phases of I, II and III in terms of the order parameters, the phase line equations are obtained among the following transitions: liquid-solid I, liquid-solid II, solid I-solid II, solid II solid III and liquid-solid III in K2S2O7-KHSO4.
Calculation of a phase diagram for the ice II-V-VItransitions
Tari, O; Yurtseven, Hasan Hamit; Salihoglu, S (2000-12-01)
In this study we calculate the P - T phase diagram of ice II - V - VI using a mean field model. Our calculated phase line equations are fitted to the experimental data from the literature. There is a very good agreement between our calculated and experimentally observed P - T phase diagram of ice II - V - VI.
Calculation of the Raman frequencies as a function of temperature in phase I of benzene
Tari, O.; Yurtseven, Hasan Hamit (2013-06-01)
This study gives our calculation of the Raman frequencies of the lattice modes A (A(1g)), B (A(g)B(2g)) 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. The Raman frequencies of those lattice modes are calculated using the volume data from the literature through the mode Gruneisen parameters for the solid phase I of this molecular crystal. It is shown here that the Raman frequencies of the lattice modes studied decrease with increasin...
Calculation of the H-T phase diagram, magnetization and susceptibility in layered structures
Yurtseven, Hasan Hamit; Emre, B.; Acet, M. (2015-11-01)
The magnetic Field-temperature (H-T) phase diagram is calculated using the mean held theory by expanding the free energy in terms of the uniform and staggered magnetization for the ferromagnetic-antiferromagnetic transitions in the La0.6Nd0.4Mn2Si2 multilayer structures. Using our experimental measurements, analysis of the magnetization as a function of the magnetic held at constant temperatures from 45 K to 250 K is performed by a power-law formula close to the ferromagnetic-antiferromagnetic transitions. ...
Analysis of various polarization asymmetries in the inclusive b -> s a"" (+) a"" (-) decay in the fourth-generation standard model
BASHIRY, VALİ; Bayar, M. (Springer Science and Business Media LLC, 2009-06-01)
In this study a systematical analysis of various polarization asymmetries in inclusive b -> s a"" (+) a"" (-) decay in the standard model (SM) with four generation of quarks is carried out. We found that the various asymmetries are sensitive to the new mixing and quark masses for both of the mu and tau channels. Sizable deviations from the SM values are obtained. Hence, b -> s a"" (+) a"" (-) decay is a valuable tool for searching physics beyond the SM, especially in the indirect searches for the fourth-gen...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
H. H. Yurtseven, “Calculation of a generalised smectic–hexatic phase diagram in liquid crystals,”
Physics and Chemistry of Liquids
, pp. 302–315, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/28365.