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Issue 14, 2019
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An electrically driven structural phase transition in single Ag2Te nanowire devices

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Abstract

Exploring new phase-change materials is instrumental in the progression of electronic memory devices. Ag2Te with its reversible structural phase transition, and in the form of nanowires, has become an apt candidate for potential use in nanoscale memory devices. Here, we report a study on the temperature- or electrically-driven phase change properties of crystalline Ag2Te nanowires. We first demonstrate that this structural phase change can be achieved via heating up the nanowires, which results in a sharp drop in conductance. Then we show that a DC voltage (<1 V) induced Joule heating can be used to reach the phase transition, even without any external heating. This work shows the potential of using Ag2Te nanowires as a phase-change material in low voltage and low power nanoscale devices.

Graphical abstract: An electrically driven structural phase transition in single Ag2Te nanowire devices

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Supplementary files

Article information


Submitted
10 Dec 2018
Accepted
05 Mar 2019
First published
06 Mar 2019

Nanoscale, 2019,11, 6629-6634
Article type
Paper
Author version available

An electrically driven structural phase transition in single Ag2Te nanowire devices

K. Premasiri, W. Zheng, B. Xu, T. Ma, L. Zhou, Y. Wu and X. P. A. Gao, Nanoscale, 2019, 11, 6629
DOI: 10.1039/C8NR10000D

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