Interaction of wedge-like domains created by local polarization reversal on nonpolar cut of lithium niobate

Abstract

The formation of stripe domains as a result of domain merging during local switching by a conductive SPM tip on Y cut of lithium niobate doped by MgO was studied. The stripe domains with proper length can be created by application of a positive voltage pulse after a negative one in the point displaced on a certain distance in Z + direction. The length of the stripe domain is exactly limited by the distance between the points of voltage application. The creation of periodical structures of the stripe domains with 1 μm period and 0.5 duty cycle was demonstrated.

Keywords:

• Piezoresponse force microscopy
• charged domain wall
• local switching

Acknowledgments

The equipment of the Ural Center for Shared Use “Modern nanotechnology” Ural Federal University (reg. no. 2968) was used with the financial support of the Ministry of Science and Higher Education of the Russian Federation (project no. 075-15-2021-677).

Additional information

Funding

The research was made possible by the Russian Science Foundation (project No. 19-12-00210).