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05-06U

05-06U


By icmp_admin - Posted on 08 February 2012

UDC: 
532; 533; 533.9:530.182; 536.75; 536-12.01.
PACS: 
05.60.+w, 05.70.Ln, 05.20.Dd, 52.25.Dg, 52.25.Fi

The influence of shear stresses $\sigma _{4}$ and $\sigma _{5}$ on physical properties of KD$_2$PO$_4$ type ferroelectrics

R.R. Levitsky
I.R. Zachek
A.S. Vdovych

Within the four-particle cluster approximation for the proton ordering model we study the influence of shear stresses $\sigma _{4}$ and $\sigma _{5}$ on the phase transition, static dielectric, elastic and thermal properties of deuterated KD$_2$PO$_4$ type ferroelectrics. Thermodynamic potentials of the crystals in the presence of stress $\sigma _{4}$ are calculated. Numerical analysis of the obtained results in paraelectric phase is performed, and the set of the theory parameters providing the best fit to the available experimental data is found.

Year: 
2005
Pages: 
28
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