Effect of Electric Field on Dielectric and Acoustic Properties of Triglycine Sulphate Crystal

2011 ◽  
Author(s):  
Trilok Chandra Upadhyay ◽  
Ashish Nautiyal ◽  
P. K. Bajpai ◽  
K. S. Ojha ◽  
K. N. Singh
Keyword(s):  
Electric Field ◽  
Acoustic Properties ◽  
Triglycine Sulphate

Control of acoustic properties of a BaTiO 3 thin film by a planar electric field

2015 ◽  
Vol 111 (1) ◽  
pp. 16002 ◽  
Author(s):  
Vladimir Shirokov ◽  
Valery Kalinchuk ◽  
Roman Shakhovoy ◽  
Yury Yuzyuk
Keyword(s):  
Thin Film ◽  
Electric Field ◽  
Acoustic Properties

scholarly journals Theoretical Study of Ferroelectric Triglycine Sulphate (TGS) Crystal in External Electric Fields

2013 ◽  
Vol 11 ◽  
pp. 54-65 ◽  
Author(s):  
Trilok Chandra Upadhyay ◽  
Ashish Nautiyal
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
Temperature Dependent ◽  
Triglycine Sulphate ◽  
Acoustical Properties ◽  
Coupled Mode ◽  
Electric Field Dependence ◽  
Crystal Electric Field ◽  
Double Time ◽  
Good Agreement

A modified two sub-lattice pseudospin-lattice coupled mode model of Mitsui et al [Phys. Rev., 111 (1958) 1259] by adding third, fourth order phonon anharmonic interaction and external electric field terms has been applied to ferroelectric triglycine sulphate crystal. Electric field dependence of ferroelectric, dielectric and acoustical properties has been studied. With the help of double time temperature dependent Green’s function method, expressions for shift, width, soft mode frequency, dielectric constant, loss tangent and acoustic attenuation have been derived. Numerically calculations have been made and results have been compared with experimental data reported by Bye et al [Ferroelectrics 4 (1974) 243] and Shreekumar et al [Ferroelectrics 160 (1994) 23] for TGS crystal and a good agreement has been observed.

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