DOI: 10.1063/1.3273370. Inducing chalcogenide phase change with ultra-narrow carbon nanotube heaters

Inducing chalcogenide phase change with ultra-narrow carbon nanotube heaters

10.1063/1.3273370

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

Carbon nanotube (CNT) heaters with sub-5 nm diameter induce highly localized phase change in Ge2Sb2Te5 (GST) chalcogenide. A significant reduction in resistance of test structures is measured as the GST near the CNT heater crystallizes. Effective GST heating occurs at currents as low as 25 μA, significantly lower than in conventional phase change memory with metal electrodes (0.1–0.5 mA). Atomic force microscopy reveals nucleation sites associated with phase change in GST around the CNT heater. Finite element simulations confirm electrical characteristics consistent with the experiments, and reveal the current and phase distribution in GST.

Bibliography

Xiong, F., Liao, A., & Pop, E. (2009). Inducing chalcogenide phase change with ultra-narrow carbon nanotube heaters. Applied Physics Letters, 95(24).

Authors 3

Feng Xiong (first)
Albert Liao (additional)
Eric Pop (additional)

References 23 Referenced 48

10.1038/nmat1627 / Nature Mater. (2006)
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See EPAPS supplementary material at http://dx.doi.org/10.1063/1.3273370 for CNT fabrication, GST deposition and characterization, and finite-element modeling parameters.
10.1063/1.2717855 / J. Appl. Phys. (2007)
10.1063/1.3126708 / J. Appl. Phys. (2009)
10.1103/PhysRevLett.92.106804 / Phys. Rev. Lett. (2004)
10.1021/nl801698h / Nano Lett. (2008)
10.1021/nl802808f / Nano Lett. (2008)
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10.1143/JJAP.47.3372 / Jpn. J. Appl. Phys., Part 1 (2008)
{'key': '2023070217145266200_c13'}
10.1109/TED.2009.2021364 / IEEE Trans. Electron Devices (2009)
10.1038/nmat1350 / Nature Mater. (2005)
10.1063/1.2359354 / Appl. Phys. Lett. (2006)
10.1063/1.2784169 / Appl. Phys. Lett. (2007)
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10.1088/0957-4484/19/29/295202 / Nanotechnology (2008)
{'key': '2023070217145266200_c19'}

Dates

Type	When
Created	15 years, 8 months ago (Dec. 14, 2009, 6:48 p.m.)
Deposited	2 years, 2 months ago (July 2, 2023, 1:14 p.m.)
Indexed	1 month ago (July 30, 2025, 6:53 a.m.)
Issued	15 years, 8 months ago (Dec. 14, 2009)
Published	15 years, 8 months ago (Dec. 14, 2009)
Published Online	15 years, 8 months ago (Dec. 14, 2009)
Published Print	15 years, 8 months ago (Dec. 14, 2009)

Funders 0

None

BibTeX

@article{Xiong_2009, title={Inducing chalcogenide phase change with ultra-narrow carbon nanotube heaters}, volume={95}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.3273370}, DOI={10.1063/1.3273370}, number={24}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Xiong, Feng and Liao, Albert and Pop, Eric}, year={2009}, month=dec }

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