About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-19: Two-Step Deposition of Platinum for Heteroepitaxial Growth |
| Author(s) |
Marshall Frye, Jonathan Chin, Matthew Barone, Steven Zeltmann, Lauren Garten |
| On-Site Speaker (Planned) |
Marshall Frye |
| Abstract Scope |
Developing a route to deposit highly conductive, (111)-oriented platinum with sub-nanometer roughness would expand the range of hexagonal and (111)-oriented cubic materials accessible for electronic applications. Here, a two-temperature e-beam deposition strategy is introduced to deposit (111)-textured platinum films on Al2O3 that simultaneously enhances crystallographic alignment, electrical conductivity, and surface smoothness. Initially depositing at 700 °C induces strong (111) texturing from the substrate, and subsequently depositing at 500 °C promotes planar growth. The resulting films exhibit a rocking curve full width at half maximum of 0.004°, a surface roughness of 0.20 nm, and a conductivity of 8.99 × 10⁶ S/m. The conductive substrate platform enables the stabilization and study of metastable hexagonal ScFeO3, a multiferroic phase not previously realized on commercial platinum substrates. These results demonstrate a transferrable route for producing high-quality metal films that expand the materials space accessible for electronic applications. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Characterization, Thin Films and Interfaces, Nanotechnology |