11-18U

# 11-18U

By - Posted on 08 February 2012

UDC:
537.226.83/.86, 538.91
PACS:
77.84.-s, 64.60.Cn, 77.22.-d, 77.80.-e, 77.80.Bh, 77.65.Bn

The effect of hydrostatic and uniaxial pressures on phase transition and physical characteristics of quasi-one-dimensional CsH$_2$PO$_4$ type ferroelectrics

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

Within modified proton ordering model of quasi-one-dimensional CsH$_2$PO$_4$ type ferroelectrics with hydrogen bonds with taking into account linear on strains $\varepsilon _i$ and $\varepsilon _5$ contributions into energy of proton system, but without taking into account tunneling, within the two-particle cluster approximation the effect of hydrostatic and uniaxial pressures on phase transition and physical characteristics of quasi-one-dimensional CsH$_2$PO$_4$ type ferroelectrics are studied and calculated. At the proper set of the parameters good quantitative description of the corresponding experimental data for those crystals is obtained.

Year:
2011
Pages:
33