Coexistence of tetrahedral and octahedral-like sites in amorphous phase change materials

Details Coexistence of tetrahedral and octahedral-like sites in amorphous phase change materials Coexistence of tetrahedral and octahedral-like sites in amorphous phase change materials

2007-08-09

arxiv.org/abs/0708.1302v2

Applied Physics Letters 91, 171906 (2007)

Physics

Condensed Matter

Materials Science

6 pages, 10 figures including supplementary material

Scientific paper

10.1063/1.2801626

Chalcogenide alloys are materials of interest for optical recording and non-volatile memories. We perform ab-initio molecular dynamics simulations aiming at shading light onto the structure of amorphous Ge2Sb2Te5 (GST), the prototypical material in this class. First principles simulations show that amorphous GST obtained by quenching from the liquid phase displays two types of short range order. One third of Ge atoms are in a tetrahedral environment while the remaining Ge, Sb and Te atoms display a defective octahedral environment, reminiscent of cubic crystalline GST.

Affiliated with

Also associated with

No associations

Rating

Coexistence of tetrahedral and octahedral-like sites in amorphous phase change materials does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Coexistence of tetrahedral and octahedral-like sites in amorphous phase change materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coexistence of tetrahedral and octahedral-like sites in amorphous phase change materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-417545