R. Czajka et al., Characterization and nanometer-scale modifications of Bi2Te3 surface via atomic force microscopy, J VAC SCI B, 18(3), 2000, pp. 1194-1197
The structure of the basal plane of a Bi2Te3 crystal surface was studied by
means of the atomic force microscopy (AFM) technique. The measured heights
of steps, ranging from 0.2 to 1.4 nm, were in agreement with other structu
ral data of Bi2Te3. The images of freshly cleaved surface, obtained with at
omic resolution, revealed a plane of tellurium atoms. The recorded interato
mic distances of 0.42+/-0.02 nm were also in accordance with the structural
data. We also showed that there is a possibility of surface nanostructures
formation using the AFM probe, when working above force threshold value. (
C) 2000 American Vacuum Society. [S0734-211X(00)13303-7].