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1D Topological Systems for Next-Generation Electronics

ORAL · Invited

Abstract

Topological nanowires, topological materials confined in one dimension (1D), hold great promise for robust and scalable quantum computing and low-dissipation interconnect applications, which will transform current computing technologies. To do so, research in topological nanowires must continue to improve their synthesis and properties.



In this talk, I will discuss my group’s efforts to develop a high throughput and precision synthesis method to fabricate 1D topological systems. We employ recently developed thermomechanical nanomolding to extrude single crystal nanowires of topological materials with controlled diameter. I will highlight our transport studies on topological semimetal nanowires for their potential application as extremely scaled, low-resistance interconnects. We demonstrate that the resistivity scaling of topological semimetal nanowires is superior to those of the state-of-the-art Cu interconnects and Cu alternative metals, presenting them as viable candidates for the low-resistance interconnect applications.

Publication: [1] P. Liu, J. R. Williams, J. J. Cha, Nature Review Materials 4, 479-496 (2019)<br>[2] N. Liu, Y. Xie, G. Liu, S. Sohn, A. Raj, G. Han, B. Wu, J. J. Cha, Z. Liu, J. Schroers, PRL 124, 036102 (2020)<br>[3] H. J. Han, S. Kumar, X. Ji, J. L. Hart, G. Jin, D. J. Hynek, Q. P. Sam, V. Hasse, C. Felser, D. G. Cahill, R. Sundararaman, J. J. Cha, Adv. Mater. 35, 2208965 (2023)<br>[4] G. Jin, C. D. Multunas, J. L. Hart, M. T. Kiani, Q. P. Sam, H. Wang, Y. Cheon, K. Duong, D. H. Hynek, H. J. Han, R. Sundararaman, J. J. Cha, Nature Communications 15:5889 (2024)

Presenters

  • Judy J Cha

    Cornell University

Authors

  • Judy J Cha

    Cornell University