Macroscopic Ionic Flow in a Superionic Conductor Na+ β-Alumina Driven by Single-Cycle Terahertz Pulses
Author(s)
Minami, Yasuo; Ofori-Okai, Benjamin Kwasi; Sivarajah, Prasahnt; Katayama, Ikufumi; Takeda, Jun; Nelson, Keith Adam; Suemoto, Tohru; ... Show more Show less
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Ionic motion significantly contributes to conductivity in devices such as memory, switches, and rechargeable batteries. In our work, we experimentally demonstrate that intense terahertz electric-field transients can be used to manipulate ions in a superionic conductor, namely Na+ β-alumina. The cations trapped in the local potential minima are accelerated using single-cycle terahertz pulses, thereby inducing a macroscopic current flow on a subpicosecond timescale. Our results clearly show that single-cycle terahertz pulses can be used to significantly modulate the nature of superionic conductors and could possibly serve as a basic tool for application in future electronic devices.
Date issued
2020-04Department
Massachusetts Institute of Technology. Department of ChemistryJournal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Minami, Yasuo et al. "Macroscopic Ionic Flow in a Superionic Conductor Na+ β-Alumina Driven by Single-Cycle Terahertz Pulses." Physical Review Letters 124, 14 (April 2020): 147401 © 2020 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114