Unipolar switching in Pt/Ge SexTe1-x/Pt

Doo Seok Jeong, Seo Hee Son, Suyoun Lee, Byung Ki Cheong

Research output: Contribution to journalArticle

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Abstract

We report unipolar switching in amorphous Ge SexTe1-x of varying Se content (x) sandwiched between Pt top and bottom electrodes. After the initialization process, termed electroforming, repeatable unipolar switching was observed. We investigated the effect of the Se to Te ratio on the unipolar switching as well as on the electroforming voltage and the resistance of the as-electroformed state, which showed increases in the electroforming voltage and the resistance of the as-electroformed state with increasing Se content. Some phenomenological evidences of unipolar switching, which cannot be explained by means of the conventional phase-change effect, are reported.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume13
Issue number12
DOIs
StatePublished - 2010 Oct 29

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