MRS Meetings and Events


EL06.08.06 2024 MRS Spring Meeting

Scanning Oscillator Piezoresponse Microscopy: New Tools to Explore Domain Wall Dynamics

When and Where

Apr 25, 2024
3:45pm - 4:00pm

Room 343, Level 3, Summit



Stephen Jesse1,Neus Domingo Marimon1,Shivaranjan Raghuraman1,Kyle Kelley1

Oak Ridge National Laboratory1


Stephen Jesse1,Neus Domingo Marimon1,Shivaranjan Raghuraman1,Kyle Kelley1

Oak Ridge National Laboratory1
Dynamics of ferroelectric domain walls associated to domain wall switching are known to depend on bulk structure, being very sensitive to defects, chemical and structural pinning sites, as well as environmental conditions, modifying the electronic boundary conditions associated with screening dynamics. However, domain walls also show a sub-coercive field dynamics as a reversible motion, with vibrational states that strongly couple to local structure and composition of the domain wall. In this presentation, we will show a novel microscopy mode based on a multifrequency approach which allows us to quantify domain wall oscillations under applied sub-coercive electric field, while simultaneously disentangle electrostatic from net eletromechanical signals, which can introduce severe distortions on the net piezoelectric response around neutral domain walls. This technique allows quick visualization of domain wall displacement, their velocities and dependence on pre-existing domain configurations and defects. When applied to lead titanate, this technique shows significant oscillations of the 180° domain walls between the antiparallel c+/c- domains. Further, the displacement and velocities distinctly depend on existing a-c domain structures and relative orientations of domains. This technique can be readily applied to other heterostructures under a wide range of stimuli such as light, heat, force and bias.


oxide | scanning probe microscopy (SPM)

Symposium Organizers

Aiping Chen, Los Alamos National Laboratory
Woo Seok Choi, Sungkyunkwan University
Marta Gibert, Technische Universität Wien
Megan Holtz, Colorado School of Mines

Symposium Support

Korea Vacuum Tech, Ltd.

Center for Integrated Nanotechnologies, Los Alamos National Laboratory
Radiant Technologies, Inc.

Publishing Alliance

MRS publishes with Springer Nature