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Meeting MS&T24: Materials Science & Technology
Symposium Mesoscale Phenomena in Functional Polycrystals and Nanostructures
Presentation Title Nanoscale Flexoelectric Control of Tribology in Ferroelectrics
Author(s) Seongwoo Cho, Iaroslav Gaponenko, Céline Lichtensteiger, Jordi Barceló-Mercader, Irene Arias, Seungbum Hong, Patrycja Paruch
On-Site Speaker (Planned) Seongwoo Cho
Abstract Scope Artificially induced asymmetric tribological properties of ferroelectrics offer an alternative route to visualize and create ferroelectric domains. Using a nanoscale scanning probe, we observe switchable friction and wear behavior of ferroelectric materials, where down domains exhibit lower friction and wear coefficients compared to up domains. The asymmetry is driven by opposing flexoelectric coupling in the up and down domains under a sufficiently high contact force., and can be applied as both imaging markers for direct visualization and as smart masks for patterning ferroelectric materials. Additionally, combining this switchable tribology with multi-pass patterning to create a domain-based dynamic smart mask, we demonstrate three-dimensional nanostructuring exploiting the asymmetric wear rates of up and down domains. We envision that this top-down, chemical/resist-free, and maskless lithography technique, coupled with high-speed imaging, can be scalably applied to fabricate ferroelectric nano/microstructures and is useful for investigating polarization dynamics with big data acquisition.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Phase Field Analysis of Temperature-Dependent Grain Growth in Polycrystalline Alloys Embedded with Secondary Particles
Berry Phase Polarization Calculation of Carbon Nanotubes: Toward Non-Destructive Testing and Monitoring
Carbon, Coal and Graphite: A Simulation Approach
D-13: Computer Simulation as a Tool to Optimize Electronic Conduction
D-14: Modeling Domain Wall Dynamics in Polydomain Ferroelectric BaTiO3
D-15: Structural Optimization of Transport Properties in Artificial Interfacial Solids for High ZT Thermoelectrics
D-16: Ultra-Conducting Copper Graphene Composites from Coal
Electro-Optics in Ferroelectrics: Ab-Initio Insights
Exploring Barium Titanate: Theoretical Insights and Topological Phenomena
Exploring the Spatial Projection of Thermal Conductivity and Heat Transport in Materials
Ferroelectrics for Emergent Silicon-Integrated Optical Computing
Grain Boundary Chemistry and Electrical Potentials in Electronic Oxides
High-Throughput Approach for Predicting Optical Properties of Crystals
Intergranular Chemistry and Sintering of Metal Oxide Particle Powders
Metal-Graphene Interactions for Enhanced Electronic Conductivity in FCC Metals.
Microstructural Characterization of Artificial Interfacial Solids for High ZT Thermoelectrics
Nanoscale Flexoelectric Control of Tribology in Ferroelectrics
Permissible Domain Walls in Monoclinic Ferroelectric Phases
Predicting Failure via Grain Boundary Rupture Using a Stochastic FEM-based Approach
Vapor Phase Grown Metal Oxide Nanoparticles in Aqueous Environments: Structure Formation, Transformation Behaviour, and Reactivity

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