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<p><strong>Phase transitional ferroelectric like behaviour of ammonium tetroxalate dihydrate single crystal</strong></p>

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Title Statement <p><strong>Phase transitional ferroelectric like behaviour of ammonium tetroxalate dihydrate single crystal</strong></p>
 
Added Entry - Uncontrolled Name Jerusha, Eunice ; R.M.D. Engineering College & Anna University, Chennai
Kirupavathy, Shahil ; Velammal Engineering College & Anna University, Chennai
 
Uncontrolled Index Term Physics; Dielectrics
Dielectric; Conductivity; Penn gap; Piezoelectric; Hysteresis
 
Summary, etc. Dielectric characterisation on ammonium tetroxalate dihydrate (ATOXAL) single crystal has been carried out. The dielectric constant and dielectric loss studied as a function of temperature and frequency have been found to have anomalous variations in the vicinity of the phase transitions at 100 °C and 140 °C which have been duly supported by thermal studies. An Arrhenius shift in the temperature variation of relaxation frequency has estimated the activation energy and the means of conduction. The ferroelectric and paraelectric phase activation energies have been determined to be 1.772 eV and 3.477 eV, respectively. The Penn band gap is 1.892 eV and the polarizability has been evaluated. The piezoelectric coefficient <em>d<sub>33</sub></em> has been found to be 1.5 pCN<sup>-1</sup>. The ferroelectric hysteresis behaviour has been investigated at room temperature. From the hysteresis loop it is found that the grown crystal exhibites a remanent polarization (<em>P<sub>r</sub></em>) ∼ 0.367 μC/cm<sup>2</sup>, saturation polarisation (<em>P<sub>s</sub></em>) ∼ 1.789 μC/cm<sup>2</sup> and coercive field (<em>E<sub>c</sub></em>) ∼ 6.599 kV/cm.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2018-11-16 12:46:02
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/16681
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 56, ##issue.no## 11 (2018): Indian Journal of Pure & Applied Physics
 
Language Note en
 
Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/16681/49916
http://op.niscair.res.in/index.php/IJPAP/article/download/16681/465467163
http://op.niscair.res.in/index.php/IJPAP/article/download/16681/465467164
http://op.niscair.res.in/index.php/IJPAP/article/download/16681/465467165
 
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