Preparation and characterization of laser-irradiation induced amorphous for GeeSb2Tes phase-change materials

It has been a challenge to fully understand the structural characteristics of laser-irradiation induced amorphous （L-a） Ge2Sb2Te5 （GST） alloy due to the difficulties of collecting diffraction data from high purity specimens. In this paper, by fabri- cating GST thin films on different substrates, we...

Full description

Saved in:
Bibliographic Details
Published in中国科学：技术科学英文版 Vol. 54; no. 12; pp. 3404 - 3408
Main Author ZHANG Lei HUANG Huan YAN ZhengGuang HAN XlaoDong WANG Yang ZHANG Ze WU YiQun
Format Journal Article
LanguageEnglish
Published 2011
Subjects
Ge2Sb2Te5
制备
无定形
激光照射
相变材料
表征
选区电子衍射
透射电子显微镜
Online AccessGet full text

Cover

More Information
Summary:It has been a challenge to fully understand the structural characteristics of laser-irradiation induced amorphous （L-a） Ge2Sb2Te5 （GST） alloy due to the difficulties of collecting diffraction data from high purity specimens. In this paper, by fabri- cating GST thin films on different substrates, we exhibit an effective way of preparing L-a GST dots in submicron scale on various types of specially designed transmission electron microscope （TEM） grids. The structural characteristics of L-a GST in the form of pair distribution functions （PDF） can be achieved on single dots of L-a GST via selected area electron diffraction （SAED）. This general approach would be convenient for precisely producing laser-irradiation induced materials in submicron scale for structural investigation.
Bibliography:laser-irradiation induced amorphous, GeeSbeTes, TEM grid, laser pulse, pair distribution function
It has been a challenge to fully understand the structural characteristics of laser-irradiation induced amorphous （L-a） Ge2Sb2Te5 （GST） alloy due to the difficulties of collecting diffraction data from high purity specimens. In this paper, by fabri- cating GST thin films on different substrates, we exhibit an effective way of preparing L-a GST dots in submicron scale on various types of specially designed transmission electron microscope （TEM） grids. The structural characteristics of L-a GST in the form of pair distribution functions （PDF） can be achieved on single dots of L-a GST via selected area electron diffraction （SAED）. This general approach would be convenient for precisely producing laser-irradiation induced materials in submicron scale for structural investigation.
11-5845/TH
ISSN:1674-7321
1869-1900