DocumentCode
895558
Title
Resistive Switching Mechanism in ZnxCd1 − xS Nonvolatile Memory Devices
Author
Wang, Zheng ; Griffin, Peter B. ; McVittie, Jim ; Wong, Simon ; McIntyre, Paul C. ; Nishi, Yoshio
Author_Institution
Dept. of Electr. Eng., Stanford Univ., CA
Volume
28
Issue
1
fYear
2007
Firstpage
14
Lastpage
16
Abstract
Nonvolatile information storage devices based on an abrupt resistance switch when an electric bias is applied are very attractive for future memory applications. Recently, such a resistance switch was described in ferroelectric ZnxCd1-xS, but the mechanism of switching remains controversial. Here, we present results that elucidate the mechanism, showing that a metal needs to be easily oxidized and is capable of diffusing into the ZnCdS film as a cation impurity forming a filamentary metallic conduction path
Keywords
cadmium alloys; electrical resistivity; ferroelectric storage; positive ions; random-access storage; zinc alloys; ZnCdS; cation impurity; filamentary metallic conduction path; nonvolatile memory devices; resistive switching mechanism; Electric resistance; Electrodes; Ferroelectric materials; Metal-insulator structures; Nonvolatile memory; Random access memory; Sputtering; Switches; Switching circuits; Zinc; Chalcogenide; ZnCdS; nonvolatile memory; resistive switching;
fLanguage
English
Journal_Title
Electron Device Letters, IEEE
Publisher
ieee
ISSN
0741-3106
Type
jour
DOI
10.1109/LED.2006.887640
Filename
4039572
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