Research Fields

Domain and Domain Wall Engineering

• Elucidating the nature of electrical contact between nanoscale probe and polarization domains as well as domain walls.
• Understanding the electrochemical interaction between the surface screening charges and underlying domains and domain walls.

Polar Domains and Ionic Charges at Solid/Liquid Interfaces

• Investigating the solid-liquid interface of electrode-electrolytes at the nanoscale.
• Identifying the location and nature of the conducting filaments as well as their spatial distribution.

Mechanism of Impedance Change in Hybrid Materials

• Correlating the location of oxygen vacancies with the electronic band structure and the charge transport property.
• Designing nanoscale resistive switching filament that can connect and disconnect at low voltage and current with high reliability.

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