Crystallization mechanism and kinetics of Cr2Ge2Te6 phase change material

被引：0
|
作者：
S. Hatayama
Y. Sutou
D. Ando
J. Koike
机构：
[1] Tohoku University,Department of Materials Science, Graduate School of Engineering
来源：
MRS Communications | 2018年 / 8卷
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摘要：
The crystallization mechanism and kinetics of Cr2Ge2Te6 (CrGT) films were investigated by differential scanning calorimetry. The average Avrami exponent (na) analysis indicated that CrGT exhibits a growth-dominant crystallization in the range of heating rate (β) of 102–50°C/min. In comparison, Ge2Sb2Te5 (GST) showed a nucleation-dominant crystallization. The na of CrGT was about 3, and was majorly independent of β. The na of GST decreased with an increasing p, which asymptotically approached a value of around 3. The kinetic constant of CrGT was evaluated to be almost the same with that of GST, indicating that CrGT undergoes fast crystallization.
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页码：1167 / 1172
页数：5
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