Publication

Identification of defect distribution at ferroelectric domain walls from evolution of nonlinear dielectric response during the aging process

Related publications (77)

Removal of 90 degrees domain pinning in (100) Pb(Zr0.15Ti0.85)O-3 thin films by pulsed operation

X-ray diffraction showed that the volume fraction of 90 degrees domains in tetragonal Pb(Zr,Ti)O-3 thin films could be substantially reduced by either hot de poling or by a bipolar pulsed-field process. In both cases, the (001) Bragg peak increased and the ...

1998

Crossover in a non-analytical behaviour of dielectric non-linearity in PbMg1/3Nb2/3O3 relaxor ferroelectric

Alexander Tagantsev

The dielectric response of the relaxer ferroelectric PbMg1/3Nb2/3O3 (PMN) is found to be a non-analytical function of the ac field, with the absolute value of the non-linear component of the polarization given by \P-nl\ alpha E-m(gamma(omega,T)). The depen ...

1998

Evidence of domain wall contribution to the dielectric permittivity in PZT thin films at sub-switching fields

Dragan Damjanovic

Through the use of relations analogous to that of the Rayleigh law, it is demonstrated that the ac electric field dependence of the permittivity of ferroelectric thin films can be described. It is further shown that both reversible and irreversible compone ...

1997

Stress and frequency dependence of the direct piezoelectric effect in ferroelectric ceramics

Dragan Damjanovic

It is shown that at weak alternating stress the relationship between the piezoelectrically induced charge and applied stress in ferroelectric ceramics has the same form as the Rayleigh law for magnetization versus magnetic field in ferromagnetic materials. ...

1997

Contribution of the irreversible displacement of domain walls to the piezoelectric effect in barium titanate and lead zirconate titanate ceramics

Dragan Damjanovic

The contribution from the irreversible displacement of non-180 degrees domain walls to the direct longitudinal piezoelectric d(33) coefficient of BaTiO3 and Pb(Zr,Ti)O-3 ceramics was determined quantitatively by using the Rayleigh law. Effects of the cryst ...

1997

Crystal structure and domain-wall contributions to the piezoelectric properties of strontium bismuth titanate ceramics

Dragan Damjanovic

The piezoelectric properties of SrBi4Ti4O15 and Bi4Ti2.95Nb0.04O12 have been compared as a function of applied ac stress. Evidence of domain-wall motion was observed in Bi4Ti2.95Nb0.04O12 but not in SrBi4Ti4O15. Examination of SrBi4Ti4O15 using transmissio ...

1996

Role of Defects in the Ferroelectric Relaxer Lead Scandium Tantalate

Nava Setter

Unlike Pb(Mg1/3Nb2/3)O-3 and similar ferroelectric relaxors which never truly become ferroelectric at zero-field, disordered Pb(Sc1/2Ta1/2)O-3 (PST) is a relaxer that spontaneously transforms into a ferroelectric phase. The control of the degree of order o ...

1995

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