Isothermal phase transformation kinetics in stoichiometric GeSbTe thin films

B. Laine; C. Rivera-Rodrígues; E. Morales-Sánchez; E. Prokhorov; G. Trapaga; J. González-Hernández

doi:10.1016/j.jnoncrysol.2004.08.017

Isothermal phase transformation kinetics in stoichiometric GeSbTe thin films

B. Laine, C. Rivera-Rodrígues, E. Morales-Sánchez, E. Prokhorov, G. Trapaga, J. González-Hernández

Research output: Contribution to journal › Conference article › peer-review

10 Scopus citations

Abstract

The purpose of this work is to investigate the isothermal phase transformation in thin films of Ge₂Sb₂Te₅ and Ge₁Sb₂Te₄ alloys. From experimental and computed simulations it was shown that if the kinetic behavior is interpreted employing the Johnson-Avrami-Mehl-Kolmogorov theory, three slopes can be observed: the first related to a metastable transformation, the second to the step between metastable and stable transformation, and the last to the stable phase nucleation and growth. From X-ray patterns it was found that a metastable phase, which appears during the beginning of crystallization for Ge ₂Sb₂Te₅ and Ge₁Sb₂Te ₄ thin films, corresponds to the Ge₁Sb₄Te ₇ fee composition.

Original language	English
Pages (from-to)	173-177
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	345-346
DOIs	https://doi.org/10.1016/j.jnoncrysol.2004.08.017
State	Published - 15 Oct 2004
Externally published	Yes
Event	Physics of Non-Crystalline Solids 10 - Parma, Italy Duration: 15 Oct 2004 → 15 Oct 2004

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10.1016/j.jnoncrysol.2004.08.017

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@article{fedcef6cf35247d7bb489ab0a8a40831,

title = "Isothermal phase transformation kinetics in stoichiometric GeSbTe thin films",

abstract = "The purpose of this work is to investigate the isothermal phase transformation in thin films of Ge2Sb2Te5 and Ge1Sb2Te4 alloys. From experimental and computed simulations it was shown that if the kinetic behavior is interpreted employing the Johnson-Avrami-Mehl-Kolmogorov theory, three slopes can be observed: the first related to a metastable transformation, the second to the step between metastable and stable transformation, and the last to the stable phase nucleation and growth. From X-ray patterns it was found that a metastable phase, which appears during the beginning of crystallization for Ge 2Sb2Te5 and Ge1Sb2Te 4 thin films, corresponds to the Ge1Sb4Te 7 fee composition.",

author = "B. Laine and C. Rivera-Rodr{\'i}gues and E. Morales-S{\'a}nchez and E. Prokhorov and G. Trapaga and J. Gonz{\'a}lez-Hern{\'a}ndez",

note = "Funding Information: This work was partially supported by CONACyT (Mexican government). The authors also thank M. Hernandez-Landaverde and J.E. Urbina for their assistance with X-ray and EDS measurements.; Physics of Non-Crystalline Solids 10 ; Conference date: 15-10-2004 Through 15-10-2004",

year = "2004",

month = oct,

day = "15",

doi = "10.1016/j.jnoncrysol.2004.08.017",

language = "Ingl{\'e}s",

volume = "345-346",

pages = "173--177",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

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TY - JOUR

T1 - Isothermal phase transformation kinetics in stoichiometric GeSbTe thin films

AU - Laine, B.

AU - Rivera-Rodrígues, C.

AU - Morales-Sánchez, E.

AU - Prokhorov, E.

AU - Trapaga, G.

AU - González-Hernández, J.

N1 - Funding Information: This work was partially supported by CONACyT (Mexican government). The authors also thank M. Hernandez-Landaverde and J.E. Urbina for their assistance with X-ray and EDS measurements.

PY - 2004/10/15

Y1 - 2004/10/15

N2 - The purpose of this work is to investigate the isothermal phase transformation in thin films of Ge2Sb2Te5 and Ge1Sb2Te4 alloys. From experimental and computed simulations it was shown that if the kinetic behavior is interpreted employing the Johnson-Avrami-Mehl-Kolmogorov theory, three slopes can be observed: the first related to a metastable transformation, the second to the step between metastable and stable transformation, and the last to the stable phase nucleation and growth. From X-ray patterns it was found that a metastable phase, which appears during the beginning of crystallization for Ge 2Sb2Te5 and Ge1Sb2Te 4 thin films, corresponds to the Ge1Sb4Te 7 fee composition.

AB - The purpose of this work is to investigate the isothermal phase transformation in thin films of Ge2Sb2Te5 and Ge1Sb2Te4 alloys. From experimental and computed simulations it was shown that if the kinetic behavior is interpreted employing the Johnson-Avrami-Mehl-Kolmogorov theory, three slopes can be observed: the first related to a metastable transformation, the second to the step between metastable and stable transformation, and the last to the stable phase nucleation and growth. From X-ray patterns it was found that a metastable phase, which appears during the beginning of crystallization for Ge 2Sb2Te5 and Ge1Sb2Te 4 thin films, corresponds to the Ge1Sb4Te 7 fee composition.

UR - http://www.scopus.com/inward/record.url?scp=9544231690&partnerID=8YFLogxK

U2 - 10.1016/j.jnoncrysol.2004.08.017

DO - 10.1016/j.jnoncrysol.2004.08.017

M3 - Artículo de la conferencia

AN - SCOPUS:9544231690

SN - 0022-3093

VL - 345-346

SP - 173

EP - 177

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

T2 - Physics of Non-Crystalline Solids 10

Y2 - 15 October 2004 through 15 October 2004

ER -

Isothermal phase transformation kinetics in stoichiometric GeSbTe thin films

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