Measurement of crystal growth velocity in a melt-quenched phase-change material
10.1038/ncomms3371
Crossref journal-article
Springer Science and Business Media LLC
Nature Communications (297)
Abstract

AbstractPhase-change materials are the basis for next-generation memory devices and reconfigurable electronics, but fundamental understanding of the unconventional kinetics of their phase transitions has been hindered by challenges in the experimental quantification. Here we obtain deeper understanding based on the temperature dependence of the crystal growth velocity of the phase-change material AgInSbTe, as derived from laser-based time-resolved reflectivity measurements. We observe a strict Arrhenius behaviour for the growth velocity over eight orders of magnitude (from ~10 nm s−1to ~1 m s−1). This can be attributed to the formation of a glass at elevated temperatures because of rapid quenching of the melt. Further, the temperature dependence of the viscosity is derived, which reveals that the supercooled liquid phase must have an extremely high fragility (>100). Finally, the new experimental evidence leads to an interpretation, which comprehensively explains existing data from various different experiments reported in literature.

Bibliography

Salinga, M., Carria, E., Kaldenbach, A., Bornhöfft, M., Benke, J., Mayer, J., & Wuttig, M. (2013). Measurement of crystal growth velocity in a melt-quenched phase-change material. Nature Communications, 4(1).

Authors 7
  1. Martin Salinga (first)
  2. Egidio Carria (additional)
  3. Andreas Kaldenbach (additional)
  4. Manuel Bornhöfft (additional)
  5. Julia Benke (additional)
  6. Joachim Mayer (additional)
  7. Matthias Wuttig (additional)
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Dates
Type When
Created 11 years, 11 months ago (Aug. 29, 2013, 6:27 a.m.)
Deposited 1 year, 3 months ago (May 17, 2024, 8:12 a.m.)
Indexed 4 weeks ago (July 26, 2025, 5:02 a.m.)
Issued 11 years, 11 months ago (Aug. 29, 2013)
Published 11 years, 11 months ago (Aug. 29, 2013)
Published Online 11 years, 11 months ago (Aug. 29, 2013)
Funders 0

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@article{Salinga_2013, title={Measurement of crystal growth velocity in a melt-quenched phase-change material}, volume={4}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms3371}, DOI={10.1038/ncomms3371}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Salinga, Martin and Carria, Egidio and Kaldenbach, Andreas and Bornhöfft, Manuel and Benke, Julia and Mayer, Joachim and Wuttig, Matthias}, year={2013}, month=aug }