Macroscopic Ionic Flow in a Superionic Conductor Na+ β-Alumina Driven by Single-Cycle Terahertz Pulses
Name
PhysRevLett.124.147401.pdf
Description
Published version
Size
787.81 KB
Format
Adobe PDF
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Author(s)
Minami, Yasuo
Ofori-Okai, Benjamin Kwasi
Sivarajah, Prasahnt
Katayama, Ikufumi
Takeda, Jun
Nelson, Keith Adam
Suemoto, Tohru
Date Issued
April 2020
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1103/physrevlett.124.147401
