Understanding the early cycling evolution behaviors for phase change memory application

The RESET current of T-shaped phase change memory cells with 35 nm heating electrodes has been studied to understand the behavior of early cycling evolution. Results show that the RESET current has been significantly reduced after the early cycling evolution (1st RESET) operation. Compared the trans...

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Published in:Journal of applied physics 2014-11, Vol.116 (20)
Main Authors: Wang, Yuchan, Chen, Yifeng, Cai, Daolin, Cheng, Yan, Chen, Xiaogang, Wang, Yueqing, Xia, Mengjiao, Zhou, Mi, Li, Gezi, Zhang, Yiyun, Gao, Dan, Song, Zhitang, Feng, Gaoming
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Computer memory
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Crystal structure
CRYSTALS
Cycles
ELECTRODES
EVOLUTION
FCC LATTICES
Grains
HEATING
Image transmission
Microscopes
Phase change
Phase transitions
T shape
TRANSMISSION ELECTRON MICROSCOPY
Two dimensional analysis
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cited_by cdi_FETCH-LOGICAL-c351t-b3229c76de980c68875a52e0a99c24459eb1d11e1c1a9618e0e5e5f03d6580c03
cites cdi_FETCH-LOGICAL-c351t-b3229c76de980c68875a52e0a99c24459eb1d11e1c1a9618e0e5e5f03d6580c03
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container_issue 20
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container_title Journal of applied physics
container_volume 116
creator Wang, Yuchan
Chen, Yifeng
Cai, Daolin
Cheng, Yan
Chen, Xiaogang
Wang, Yueqing
Xia, Mengjiao
Zhou, Mi
Li, Gezi
Zhang, Yiyun
Gao, Dan
Song, Zhitang
Feng, Gaoming
description The RESET current of T-shaped phase change memory cells with 35 nm heating electrodes has been studied to understand the behavior of early cycling evolution. Results show that the RESET current has been significantly reduced after the early cycling evolution (1st RESET) operation. Compared the transmission electron microscope images, it is found that the hexagonal Ge2Sb2Te5 (GST) crystal grains are changed into the grains with face centered cubic structure after the early cycling evolution operation, which is taken as the major reason for the reduced RESET current, confirmed by a two-dimensional finite analysis and ab initio calculations.
doi_str_mv 10.1063/1.4902851
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subjects CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Computer memory
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Crystal structure
CRYSTALS
Cycles
ELECTRODES
EVOLUTION
FCC LATTICES
Grains
HEATING
Image transmission
Microscopes
Phase change
Phase transitions
T shape
TRANSMISSION ELECTRON MICROSCOPY
Two dimensional analysis
title Understanding the early cycling evolution behaviors for phase change memory application
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