Article ID Journal Published Year Pages File Type
1787358 Current Applied Physics 2011 4 Pages PDF
Abstract

Strain imaging of electrochemical behavior of a solid electrolyte Cu2S in switching devices for nonvolatile memories is presented. The precipitation and dissolution of Cu, and the nonstoichiometry changes cause changes in volume. Strain imaging we have proposed detects the volume changes through the surface displacements using scanning probe microscopy and provides high resolution images. We observed the distributions of the electrochemical reactions in Cu2S and located the Cu bridges causing switching.

► High resolution imaging of electrochemical reactions in a solid electrolyte has been presented. ► Movements of Cu ions in Cu2S due to electric fields have been imaged with high resolution. ► Individual metal bridge causing large changes in resistance was imaged.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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