| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
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| Symposium
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Advances and Discoveries in Non-equilibrium Driven Nanomaterials and Thin Films
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| Presentation Title |
Exploring equilibrium and non-equilibrium bi-metallic materials with unique magneto-optical properties |
| Author(s) |
Philip D. Rack |
| On-Site Speaker (Planned) |
Philip D. Rack |
| Abstract Scope |
Bimetallic materials with magnetic and plasmonic responses are candidates for enhanced bioimaging and therapeutics. We will overview our recent work exploring magneto-plasmonic materials in the AgxNi1-x, AuxNi1-x, AuxCo1-x systems. Combinatorial co-sputtering is used to deposit thin films and the composition and microstructure are correlated to the substrate position. Fast quenching from the vapor phase results in supersaturated solid solutions of the otherwise low miscibility equilibrium materials. Pulsed laser induced dewetting is used to rapidly melt sub 20 nm thick films, which induces dewetting of the film and generates functional nanoparticles. The optical and magnetic properties of the alloys in various equilibrium and non-equilibrium states will be overviewed. We will also overview an in situ laser delivery system equipped onto our scanning transmission electron microscope, and show photothermal in situ phase separation as well as excited state electron energy loss spectroscopy to reveal the plasmonic nearfield properties of the materials.
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| Proceedings Inclusion? |
Planned: |
| Keywords |
Phase Transformations, Magnetic Materials, Thin Films and Interfaces |