Modulation of phase change characteristics in Ag-incorporated Ge2Sb2Te5 owing to changes in structural distortion and bond strength

Ag-Incorporated Ge2Sb2Te5 (AGST) crystallizes faster and at a lower temperature than Ge2Sb2Te5 (GST) owing to the changes in local structure and chemical bonding.

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Enhanced reliability of phase-change memory via modulation of local structure and chemical bonding by incorporating carbon in Ge2Sb2Te5

RSC Advances ◽

10.1039/d1ra02210e ◽

2021 ◽

Vol 11 (36) ◽

pp. 22479-22488

Author(s):

Jeong Hwa Han ◽

Hun Jeong ◽

Hanjin Park ◽

Hoedon Kwon ◽

Dasol Kim ◽

...

Keyword(s):

Phase Change ◽

Charge Density ◽

Chemical Bonding ◽

Local Structure ◽

Phase Change Memory ◽

Change Memory

Charge density differences (CDDs) on Ge–C–Sb bonds in CGST(5%) and Ge–C–Sb in CGST(10%).

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Effects of resonant bonding and structural distortion on the phase change properties of Sn2Sb2Se5

Journal of Materials Chemistry C ◽

10.1039/c7tc01135k ◽

2017 ◽

Vol 5 (31) ◽

pp. 7820-7829 ◽

Cited By ~ 4

Author(s):

Min Ahn ◽

Kwang-sik Jeong ◽

Seungjong Park ◽

Sungjin Park ◽

Hoon Jung ◽

...

Keyword(s):

Phase Change ◽

Random Access ◽

Random Access Memory ◽

Structural Distortion ◽

Access Memory ◽

Chalcogenide Material ◽

Change Characteristics ◽

Memory Applications

The phase-change characteristics of Sn2Sb2Se5(SSS), a pseudo-binary chalcogenide material, were investigated for use in phase-change random access memory applications.

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Preparation of PVA/PEG Phase Change Composite Nanofibers by Electrospinning

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.306-307.37 ◽

2011 ◽

Vol 306-307 ◽

pp. 37-40 ◽

Cited By ~ 5

Author(s):

Da Hui Sun ◽

Tian Yu Xu ◽

Yong Jia Liu ◽

Mei Zhang

Keyword(s):

Phase Transition ◽

Phase Change ◽

Composite Nanofibers ◽

Diameter Distribution ◽

Weight Percentage ◽

Weight Content ◽

Reversible Phase Transition ◽

Change Characteristics ◽

Micro Morphology ◽

Reversible Phase

Phase change PVA / PEG composite nanofibers were prepared by electrospinning, micro-morphology of PVA / PEG fibers with different weight content were analyzed, the phase change characteristics were also analyzed. The result showed that well distributed composite nanofibers which composed by PVA/PEG blend solution can be obtained by electrospinning.PVA fibreforming were influenced because of the existence of PEG, including bond, irregular block, small rough, uneven diameter distribution in fibers. PVA/PEG blend solution of 4:6 weight content was well fibreforming compared with other different weight content.The continuity of spinneret flow in electrospinning would directly affected by polymer solution consentrition and viscosity. Further research about which and the influence in fibers diameter and morphology will be explored. Composite nanofibers possessed reversible phase transition characteristics,Tm Essentially unchanged ,Tcwere related to the weight percentage of PEG/PVA, at the same time, the enthalpy will increase along with the gradually increase in weight percentage of PEG.

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