Understanding the switching-off mechanism in Ag+ migration based resistively switching model systems

被引：202

作者：

Guo, Xin

Schindler, Christina

机构：

[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

[2] Forschungszentrum Julich, Ctr Nanoelect Syst Informat Technol, D-52425 Julich, Germany

[3] Rhein Westfal TH Aachen, Inst Werkstoffe Elektrotech IWE 2, D-52056 Aachen, Germany

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 13期

关键词：

D O I：

10.1063/1.2793686

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Different coplanar Pt/Ag structures were prepared by photolithography on SiO2 substrates, and Pt/H2O/Ag cells were formed by adding de-ionized H2O to the coplanar Pt/Ag structures. The Pt/H2O/Ag cell is utilized here as a model system, due to the feasibility of visual inspection of the switching process. Bipolar switching was achieved for the cell. Scanning electron microscopy (SEM) investigations demonstrated that the growth and dissolution of Ag dendrites are responsible for the resistive switching. The Ag dendrite morphology is proposed to be the origin of the asymmetrical dissolution during the switching-off process, hence the bipolar nature of the switching characteristics. (c) 2007 American Institute of Physics.

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