FERROELECTRIC THIN FILM, METHOD OF MANUFACTURING SAME, AND FERROELECTRIC THIN-FILM ELEMENT

摘要

PROBLEM TO BE SOLVED: To solve the problem wherein a 90°domain requires a high electric field when it is made to contribute as a polarization component because it has a polarization axis at a right angle with an applied electric field in relation to the domain (polarization domain) of a ferroelectric substance, and therefore it is hard to use an ferroelectric thin film on a low voltage. SOLUTION: The ferroelectric thin film has a structure of highly-oriented polycrystal in which 180°domains and 90°domains are rotated at the same angle and reversed in its plane in the same electric field in the direction in which an electric field is applied. COPYRIGHT: (C)2004,JPO&NCIPI