[S1] S1 New Materials Science on Nanoscale Structures and Functions at Crystal Interface II

10:00 AM - 10:40 AM JST(1:00 AM - 1:40 AM UTC)

[S1.13] [Keynote Lecture] Mechanical Responses and Materials Functionality at Crystal Interfaces

○Atsutomo Nakamura¹ (1. The University of Osaka)

Keywords:

Ferroelectrics,Domain-Walls,Crystal Interfaces

Ferroelectric domain wall motion governs dielectric and piezoelectric responses. We discuss domain wall mobility and functions in bulk BTO single crystals, where compression far below the yield stress induces 90^o switching and nanodomain formation, changing the permittivity by tens of times.