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<strong>Temperature dependence of ferroelectric mode frequency, dielectric constant and loss tangent in CsH2PO4 and deuterated CsH2PO4 crystals</strong>

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Title Statement <strong>Temperature dependence of ferroelectric mode frequency, dielectric constant and loss tangent in CsH2PO4 and deuterated CsH2PO4 crystals</strong>
 
Added Entry - Uncontrolled Name Mamgain, Anubhuti ; H. N. B. Garhwal University, Srinagar Garhwal, Uttarakhand
Upadhyay, Trilok Chandra; H. N. B. Garhwal University, Srinagar Garhwal, Uttarakhand
UGC
 
Uncontrolled Index Term solid state physics; ferroelectrics
Ferroelectrics; Green function; Dielectric constant; Loss tangent
 
Summary, etc. The pseudo-spin lattice coupled mode model by adding third- and fourth-order phonon anharmonic interactions and extra spin-lattice interaction term has been considered for CsH<sub>2</sub>PO<sub>4</sub> (abbreviated CDP) and deuterated CsH<sub>2</sub>PO<sub>4</sub> (abbreviated DCDP) crystals. Expressions for shift and width of response function, vibrational normal mode frequency, dielectric constant and loss tangent have been evaluated. Double time temperature dependent Green’s function method has been used for derivation. Fitting the values of model parameters in expressions, the temperature dependence of soft mode frequency, dielectric constant and loss tangent have been calculated. Theoretical results are in agreement with experimental results reported by Blinc <em>et al</em><sup>16</sup>.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2016-12-27 09:11:23
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/12413
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 54, ##issue.no## 12 (2016): Indian Journal of Pure & Applied Physics
 
Language Note en
 
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