Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic Acids
The stability of phase transition temperatures and textural changes for thermotropic pure and nanodoped p-n-alkyloxybenzoic acid mesogens were aimed to study at considerable time periods. Frequency and temperature dependent dielectric constant and dielectric loss for the pure and nanodoped liquid cr...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2014/639259 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849682977605287936 |
|---|---|
| author | S. Sreehari Sastry L. Tanuj Kumar T. Vishwam V. R. K. Murthy S. Lakshminaryana Ha Sie Tiong |
| author_facet | S. Sreehari Sastry L. Tanuj Kumar T. Vishwam V. R. K. Murthy S. Lakshminaryana Ha Sie Tiong |
| author_sort | S. Sreehari Sastry |
| collection | DOAJ |
| description | The stability of phase transition temperatures and textural changes for thermotropic pure and nanodoped p-n-alkyloxybenzoic acid mesogens were aimed to study at considerable time periods. Frequency and temperature dependent dielectric constant and dielectric loss for the pure and nanodoped liquid crystals were carried out. Significant anomalies in dielectric studies were observed near phase transitions when dielectric constant and dielectric loss had been measured as a function of temperature and frequency. Changes in dielectric constant and loss were observed and there were no apparent changes at high frequencies instead maintaining constant values. The variations in conductivity, activation energy, and relaxation times had also been studied in the nematic and smectic phases. The temperature dependent dielectric constant stability (temperature coefficient of dielectric constant τε) had shown shift in the observed frequency range of thermotropic liquid crystals corresponding to the change in the dielectric constant values. |
| format | Article |
| id | doaj-art-d1d5e0584d7543ddb952925f6947369a |
| institution | DOAJ |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-d1d5e0584d7543ddb952925f6947369a2025-08-20T03:24:02ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242014-01-01201410.1155/2014/639259639259Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic AcidsS. Sreehari Sastry0L. Tanuj Kumar1T. Vishwam2V. R. K. Murthy3S. Lakshminaryana4Ha Sie Tiong5Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, IndiaDepartment of Physics, Acharya Nagarjuna University, Nagarjuna Nagar 522510, IndiaDepartment of Physics, Gitam University, Hyderabad Campus, Rudraram 502329, IndiaDepartment of Physics, Indian Institute of Technology, Chennai 600036, IndiaDepartment of Electronics and Communication Engineering, K.L. University, Greenfields, Vaddeswaram, Guntur, Andhra Pradesh 522002, IndiaDepartmant of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, 31900 Kampar, Perak, MalaysiaThe stability of phase transition temperatures and textural changes for thermotropic pure and nanodoped p-n-alkyloxybenzoic acid mesogens were aimed to study at considerable time periods. Frequency and temperature dependent dielectric constant and dielectric loss for the pure and nanodoped liquid crystals were carried out. Significant anomalies in dielectric studies were observed near phase transitions when dielectric constant and dielectric loss had been measured as a function of temperature and frequency. Changes in dielectric constant and loss were observed and there were no apparent changes at high frequencies instead maintaining constant values. The variations in conductivity, activation energy, and relaxation times had also been studied in the nematic and smectic phases. The temperature dependent dielectric constant stability (temperature coefficient of dielectric constant τε) had shown shift in the observed frequency range of thermotropic liquid crystals corresponding to the change in the dielectric constant values.http://dx.doi.org/10.1155/2014/639259 |
| spellingShingle | S. Sreehari Sastry L. Tanuj Kumar T. Vishwam V. R. K. Murthy S. Lakshminaryana Ha Sie Tiong Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic Acids Advances in Condensed Matter Physics |
| title | Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic Acids |
| title_full | Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic Acids |
| title_fullStr | Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic Acids |
| title_full_unstemmed | Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic Acids |
| title_short | Dielectric Studies on Fe3O4 Nanodoped p-n-Alkyloxybenzoic Acids |
| title_sort | dielectric studies on fe3o4 nanodoped p n alkyloxybenzoic acids |
| url | http://dx.doi.org/10.1155/2014/639259 |
| work_keys_str_mv | AT ssreeharisastry dielectricstudiesonfe3o4nanodopedpnalkyloxybenzoicacids AT ltanujkumar dielectricstudiesonfe3o4nanodopedpnalkyloxybenzoicacids AT tvishwam dielectricstudiesonfe3o4nanodopedpnalkyloxybenzoicacids AT vrkmurthy dielectricstudiesonfe3o4nanodopedpnalkyloxybenzoicacids AT slakshminaryana dielectricstudiesonfe3o4nanodopedpnalkyloxybenzoicacids AT hasietiong dielectricstudiesonfe3o4nanodopedpnalkyloxybenzoicacids |