PFM images of domains recorded in SBN–Nd crystal sequentially with , 10 and 60 s, .
The dependencies of the domain area on the tip voltage for different exposure times in SBN–Nd crystal. In the inset—the recalculated domain radii; the solid lines show the linear approximation.
The time dependencies of the domain area for different tip voltages in SBN–Nd crystal; the solid curves are the approximation by the power function (1). In the inset—the recalculated domain radii.
(a) The dependence of the domain-wall lateral velocity on the distance from the tip apex calculated from . (b) The radial distribution of the field for calculated by the Eq. (2) for SBN–Nd.
The decay kinetics of recorded domains upon switching off the voltage in undoped SBN (a) and SBN–Nd (b). In both crystals the recording conditions were , (curve 1) and 30 s (curve 2).
The discrete domain chain (a) and quasicontinuos domain line (b) recorded in SBN–Nd with the distances between recorded domains and 50 nm, respectively. The curves below show the corresponding line sections. The recording conditions were 10 V and 200 ms at any point.
The decay kinetics of the domain chains recorded in SBN–Nd crystal, upon switching off the voltage. The curves 1, 2, and 3 present the relaxation of chains recorded with , 110 nm, and 270 nm, respectively; the curve 4 is the decay of individual domains. The solid curves show fitting by (3). The recording conditions were 10 V and 200 ms at any point.
The discrete (a) and quasicontinuous (b) domain squares recorded in SBN crystal with distances along the orthogonal coordinates (a) and (b). The recording conditions were 10 V and 200 ms at any point. The arrows in (b) show the direction of the line section.
The relaxation of the quasicontinuous domain square shown in Fig. 8(b). (a) Temporal variations in the line section; (b) the relaxation kinetics of the line section; each point was obtained by averaging the amplitude over the line section.
The relaxation kinetics of the discrete domain square. Curves 1 and 2 present, respectively, the decay of the central and edge points 1 and 2, curve 3 is the decay of the domain chain recorded with the same . The solid lines show the approximation by (3).
The array of domain stripes (a) and a checkerboard (b) composed of quasicontinuous domain ensembles of opposite sign. The spatial periods of arrays are . The line sections below “zebra” demonstrate its relaxation within two weeks after recording.
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