Enhanced crystallization of GeTe from an Sb 2Te 3 template

R. E. Simpson, P. Fons, A. V. Kolobov, M. Krbal, J. Tominaga

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36 Citations (Scopus)

Abstract

Crystalline Sb 2Te 3 templates reduce the crystallization time of the phase change material GeTe by four orders of magnitude to 20 ns. Structural measurements and density functional theory molecular dynamics atomistic modeling show that this reduction is a direct consequence of textured crystal growth from a plane of octahedral crystal nucleation centers. The nucleation template serves to reduce the crystallization activation energy by 2.6 eV allowing crystallization to proceed at a temperature 95 °C lower than that of the untemplated GeTe film.

Original languageEnglish
Article number021911
JournalApplied Physics Letters
Volume100
Issue number2
DOIs
Publication statusPublished - 2012 Jan 9
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Simpson, R. E., Fons, P., Kolobov, A. V., Krbal, M., & Tominaga, J. (2012). Enhanced crystallization of GeTe from an Sb 2Te 3 template. Applied Physics Letters, 100(2), [021911]. https://doi.org/10.1063/1.3675635