DOMAIN STRUCTURES OF FERROELECTRIC LEAD TITANATE NANOTUBES FABRICATED AT VARIOUS TEMPERATURES

Hyunwoo Choi, Yunseok Kim, Seungbum Hong, Kwangsoo No

Abstract

We studied the domain structures of ferroelectric PbTiO₃ nanotubes (NTs) fabricated at various temperatures, using piezoresponse force microscopy (PFM). PTO NTs fabricated at above 500 °C underwent mechanical fracture through development of nanocracks due to grain growth, leading to ferroelectric domains with larger size and lower aspect ratio.

Keywords

ferroelectrics, nanotubes, domains, PFM

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