The real-space topological domain structure has been receiving increasing interests recent years and its dynamics remains to be explored if any potential application becomes possible. We have investigated carefully the real-space topological domain structures of hexagonal RMnO3 manganites from various aspects, based on the phenomenological Ginzburg-Landau theory. First, the in-plane and out-of-plane stiffness anisotropies have been revealed to play a substantial role in controlling the domain structure. Second, we disclose in details of the dynamic response of the domain structure on external electric field. The present work provides a comprehensive understanding of the topological domain pattern evolution in hexagonal manganites, addressing the significance of the vortex-antivortex topology and proposing possible modulation of the domain structure by strain engineering and field stimuli.
14:20 - 14:45
(INVITED) Simulation of topological domains in hexagonal RMnO3 patterns and kinetics of domain walls
Reference:
Tu-S21-O-01
Presenter/s:
Jun-Ming Liu
Presentation type:
Oral communication
Room:
Room2
Chair/s:
Steven C. Tidrow
Date:
Tuesday, September 5th, 2017
Time:
14:20 - 14:45
Session times:
14:20 - 14:45