| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials 2024
|
| Presentation Title |
Fabrication of One-dimensional Topological Nanomaterials through Thermomechanical Induced Epitaxy |
| Author(s) |
Yi-Xiang Yang, Naijia Liu, Cai Lu, Sungwoo Sohn, Sebastian A. Kube , Miguel B. Costa, Ze Liu, Jan Schroers |
| On-Site Speaker (Planned) |
Yi-Xiang Yang |
| Abstract Scope |
Accurate characterization and applications of topological materials require nanostructures where topological states are enhanced by an increased surface-to-volume ratio. While a large number of topological materials have been proposed, only a few are realized in nanomaterials, mainly limited by the versatility of current synthesis methods. Here we report a general fabrication technique for one-dimensional topological nanomaterials. Specifically, bulk materials of topological phases are compressed against a rigid nanomold at an elevated temperature below the melting point. The applied pressure gradient drives the constituent atoms of the feedstock topological material into the nanomold through interfacial diffusion, resulting in epitaxial growth of high-quality single crystalline nanowires. As this diffusional mechanism generally exist in materials, our method offers a versatile approach to realize general topological phases. In this presentation, we will demonstrate the fabrication of various topological nanomaterials including topological insulators and semimetals. The mechanism and precise control of geometry will also be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Electronic Materials, Other |