Enhanced crystallization of GeTe from an Sb 2Te 3 template

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

doi:10.1063/1.3675635

Enhanced crystallization of GeTe from an Sb ₂Te ₃ template

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

Research output: Contribution to journal › Article › peer-review

49 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 language	English
Article number	021911
Journal	Applied Physics Letters
Volume	100
Issue number	2
DOIs	https://doi.org/10.1063/1.3675635
Publication status	Published - 2012 Jan 9
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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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.",

author = "Simpson, {R. E.} and P. Fons and Kolobov, {A. V.} and M. Krbal and J. Tominaga",

note = "Funding Information: The authors are grateful for the technical support of Ms. R. Kondo and Ms. H. Fukuda. This research was, in part, financially supported by grants from Elpida memory and the Japanese society for promotion of science (JSPS) through the FIRST program initiated by the council for Science and technology policy (CSTP).",

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AU - Fons, P.

AU - Kolobov, A. V.

AU - Krbal, M.

AU - Tominaga, J.

N1 - Funding Information: The authors are grateful for the technical support of Ms. R. Kondo and Ms. H. Fukuda. This research was, in part, financially supported by grants from Elpida memory and the Japanese society for promotion of science (JSPS) through the FIRST program initiated by the council for Science and technology policy (CSTP).

PY - 2012/1/9

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N2 - 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.

AB - 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.

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Enhanced crystallization of GeTe from an Sb ₂Te ₃ template

Abstract

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