Imaging of ferroelectric domains in LiTaO3 by enviromental scanning electron microscopy

Antiparallel ferroelectric domains in LiTaO3 single crystal can be directly imaged by using environmental scanning electron microscopy in secondary el ectron emission mode. Because the observation was performed at a water vapo r atmosphere (wet mode), the sample surface was free from charging, therefo re, no surface treatment was required. The image of domains can be seen for several hours. The technique may be extended to study domain structures in other ferroelectric crystals and ceramics.