About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Advances in Emerging Electronic Nanomaterials: Synthesis, Enhanced Properties, Integration, and Applications
|
Presentation Title |
Nanomolding of Topological Nanowires |
Author(s) |
Mehrdad Kiani, Hyeuk Jin Han, Quynh Sam, Judy Cha |
On-Site Speaker (Planned) |
Mehrdad Kiani |
Abstract Scope |
Due to their symmetry-protected states, topological nanostructures possess electronic properties that make them potentially transformative for a wide variety of fields. Theoretical calculations predict that 27% of crystalline structures have topological states; however, experimental studies have only focused on several model systems. Currently, the bottleneck for widespread study and use of topological nanostructures is synthesis. Here, we introduce the use of thermomechanical nanomolding, whereby a bulk feedstock is pressed at an elevated temperature through a mold with nanoscale 1D pores, for the fabrication of topological nanowires. MoP and CoSn, both Dirac semimetals, are fabricated via nanomolding with varying diameters. TEM analysis of fabricated nanowires showed they are single crystal with high aspect ratios. As both MoP and CoSn are potential replacements for Cu as interconnect materials, we performed four-point probe resistivity measurements for various diameter nanowires and compare the values to nanowires grown using other techniques, such as CVD. |