H. Bluhm et al., SURFACE-STRUCTURE OF FERROELECTRIC DOMAINS ON THE TRIGLYCINE SULFATE (010) SURFACE, Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 14(2), 1996, pp. 1180-1183
Scanning force microscopy investigations on the triglycine sulfate (01
0) surface were carried out employing the method of matched faces. The
difference in the etch rate of surfaces of ferroelectric domains with
opposite polarity as observed with optical microscopy and scanning el
ectron microscopy could be confirmed. The shape of the etch products o
n domains with equal polarity on the matching surfaces was found to va
ry widely. The height and direction of steps at the domain boundaries
were measured and discussed with respect to earlier work done by means
of transmission electron microscopy. A model which explains the diffe
rences in the step heights at the domain boundaries is given under con
sideration of the shift in the atom positions during ferroelectric pol
arization reversal. (C) 1996 American Vacuum Society.