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3D Domain Structure in Bi 4 Ti 3 O 12 Crystals Observed by Using Piezoresponse Force Microscopy
Author(s) -
Katayama S.,
Noguchi Y.,
Miyayama M.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200602607
Subject(s) - piezoresponse force microscopy , materials science , domain (mathematical analysis) , ferroelectricity , microscopy , crystallography , domain wall (magnetism) , plane (geometry) , condensed matter physics , optics , geometry , optoelectronics , physics , chemistry , mathematical analysis , mathematics , magnetization , quantum mechanics , magnetic field , dielectric
The 3D domain structure in ferroelectric Bi 4 Ti 3 O 12 crystals is investigated by using piezoresponse force microscopy. Energetically favorable 90° domain walls with faceted structure are established on the surface along the a–b plane, while the 90° domain walls have complicated and curved surfaces along the c ‐axis inside the crystals (see figure). This domain structure can be explained by the strong interaction between the 90° domain walls and oxygen vacancies.