Condensed Matter Physics | |
Thermodynamic and dynamic dielectric properties of one-dimensional hydrogen bonded ferroelectric of PbHPO4-type | |
关键词: ferroelectric; dielectric permittivity; piezoelectric coefficient; PbHPO4; PbHPO4; | |
DOI : 10.5488/CMP.17.43702 | |
来源: DOAJ |
【 摘 要 】
Within the modified model of proton ordering of one-dimensional ferroelectric having hydrogen bonds of PbHPO4-type, their thermodynamic and dynamic characteristics are studied and calculated taking into account the linear (by crystal deformations ϵi (i=1,3) and ϵ4) contributions into the energy of a proton system but without taking into account the tunneling in the two-particle cluster approximation. There has been obtained a good quantitative description of the temperature dependence of polarization, static dielectric permittivity, heat capacity and frequency dependence of dynamic dielectric permittivity at different temperatures for PbHPO4 and PbHDO4 crystals.
【 授权许可】
Unknown