Abstract
The large resistance contrast between amorphous and crystalline states of phase change materials (PCM) makes them a promising candidate for data-storage applications. Germanium telluride (GeTe), an early member of the PCM family, shows ~6 orders of magnitude difference in resistivity upon phase transition. In this paper, two different heating methods, direct (Joule) and indirect thermal heating, were applied to induce a phase transition in vertical and horizontal GeTe resistors. In the electrical measurements, it was observed that thermal heating produces a two orders of magnitude larger difference in GeTe resistivity that the Joule heating, irrespective of the resistor’s geometry and orientation. It was also found that the large inter-electrode distances in horizontal resistors make them impractical for low voltage applications. In addition, a correlation in between crystallization voltage and resistor’s geometrical parameters (i.e., inter-electrode distance and cross-sectional area) was also established. Here, it was found that the threshold voltage increases with resistor length, while it remains unaffected with a change in cross-sectional area. This work provides design guidelines to make use of not only GeTe but also other phase change materials in reconfigurable circuit applications.
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Dates
Type | When |
---|---|
Created | 7 years, 7 months ago (Jan. 18, 2018, 12:19 p.m.) |
Deposited | 1 year, 2 months ago (June 9, 2024, 11:57 a.m.) |
Indexed | 4 months, 1 week ago (April 10, 2025, 9:30 a.m.) |
Issued | 7 years, 7 months ago (Jan. 18, 2018) |
Published | 7 years, 7 months ago (Jan. 18, 2018) |
Published Online | 7 years, 7 months ago (Jan. 18, 2018) |
@article{Tomer_2018, title={A Phase Change Material for Reconfigurable Circuit Applications}, volume={8}, ISSN={2076-3417}, url={http://dx.doi.org/10.3390/app8010130}, DOI={10.3390/app8010130}, number={1}, journal={Applied Sciences}, publisher={MDPI AG}, author={Tomer, Dushyant and Coutu, Ronald}, year={2018}, month=jan, pages={130} }