Nanodomain superlattices tailored by multiple tip arrays of hvafm

5 Nanodomain superlattices tailored by multiple tip arrays of hvafm 

In this chapter we report about the use of multiple afm tip array for parallel domain writing in bulk fe crystals. Fabrication of nanodomain gratings is based on direct writing of nanodomains with small ratio r/l 10 - - 10 It is shown that the only mechanism providing such a low ratio is the fdb effect [13-15]. 

The cantilevers chip was mounted in a standard cantilever holder and was coated with 27 nm thick Cr to ensure good electrical conductivity. Aligning the probe array parallel to the sample surface was achieved using the internal laser signal feedback control system of the 

10 Ferroelectric Domain Breakdown Application to Nanodomain Technology 

We begin by calculating the contribution of a single tip, located at a distance po from a domain located underneath an adjacent tip, to the energy of interaction between the domain and the total external field, Wt neighbor. The normal component of the electric field of the tip inside the dielectric is calculated as follows  

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