Sn. Zhu et Ww. Cao, DIRECT OBSERVATION OF FERROELECTRIC DOMAINS IN LITAO3 USING ENVIRONMENTAL SCANNING ELECTRON-MICROSCOPY, Physical review letters, 79(13), 1997, pp. 2558-2561
Direct observation of ferroelectric domain structures in LiTaO3 crysta
l, without etching or surface coating, has been realized by using envi
ronmental scanning electron microscopy in secondary electron emission
mode. The new method can nondestructively provide domain contrast imag
e at submicron resolution, and the domain contrast image is very stabl
e. Conditions for best domain contrast of LiTaO crystals have been est
ablished.