Document Type

Article

Publication Date

6-6-2016

Abstract

We demonstrate terahertz (THz) split-ring resonator (SRR) designs with incorporated germanium telluride (GeTe) thin films. GeTe is a chalcogenide that undergoes a nonvolatile phase change from the amorphous to crystalline state at approximately 200 °C, depending on the film thickness and stoichiometry. The phase change also causes a drop in the material's resistivity by six orders of magnitude. In this study, two GeTe-incorporated SRR designs were investigated. The first was an SRR made entirely out of GeTe and the second was a gold SRR structure with a GeTe film incorporated into the gap region of the split ring. These devices were characterized using THz time-domain spectroscopy and were heated in-situ to determine the change in the design operation with varying temperatures.

Comments

Sourced from the publisher version of record for this article at Scitation (AIP):
Kodama, C. H., & Coutu, R. A. (2016). Tunable split-ring resonators using germanium telluride. Applied Physics Letters, 108(23), 231901. https://doi.org/10.1063/1.4953228

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. CC BY 4.0. https://creativecommons.org/licenses/by/4.0/

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DOI

10.1063/1.4953228

Source Publication

Applied Physics Letters

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