標題: | A method to enhance the data transfer rate of eutectic Sb-Te phase-change recording media |
作者: | Yeh, TT Hsieh, TE Shieh, HPD 材料科學與工程學系 光電工程學系 Department of Materials Science and Engineering Department of Photonics |
公開日期: | 15-七月-2005 |
摘要: | This work describes the effect of nitrogen doping to eutectic Sb-Te phase-change materials in order to enhance the speed of the amorphous-to-crystalline phase transformation. When nitrogen at a sputtering gas flow ratio of N-2/Ar=3% was doped in the eutectic Ge-In-Sb-Te recording layer, the data transfer rate was increased up to 1.6 times. When thin GeNx nucleation promotion layers were further added in below and above the recording layer, an overall enhancement up to 3.3 times in data transfer rate was achieved. The nitrogen contents corresponding to the N-2/Ar flow ratios (N-2/Ar=0%-10%) were calibrated by electron spectroscopy for chemical analysis. Transmission electron microscopy revealed that nitrogen doping was able to promote the phase transformation by generating numerous nucleation sites uniformly distributed in the recording layer and hence increased the recrystallization speed. (c) 2005 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.1957132 http://hdl.handle.net/11536/13489 |
ISSN: | 0021-8979 |
DOI: | 10.1063/1.1957132 |
期刊: | JOURNAL OF APPLIED PHYSICS |
Volume: | 98 |
Issue: | 2 |
結束頁: | |
顯示於類別: | 期刊論文 |