12-17U

# 12-17U

By - Posted on 29 December 2012

UDC:
537.226.83/.86, 538.91
PACS:
77.22.Ch, 77.84.-s, 77.80.-e, 77.80.Bh, 77.65.Bn, 77.22.Ej

The effect of hydrostatic and uniaxial pressures on phase transition and physical characteristics of KH$_2$PO$_4$ type ferroelectrics

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

Within modified proton ordering model for KH$_2$PO$_4$ type ferroelectrics with hydrogen bonds with taking into account linear on strains  $\varepsilon_i$ and $\varepsilon_6$ contributions into energy of proton system within the four-particle cluster approximation the effect of hydrostatic pressure on phase transition and physical characteristics of K(H$_{1-x}$D$_x)_2$PO$_4$ ferroelectrics are studied. At the proper set of the parameters good quantitative description of the corresponding experimental data for those crystals is obtained.

Year:
2012
Pages:
20