Abstract:
:Stackable select devices such as the oxide p-n junction diode and the Schottky diode (one-way switch) have been proposed for non-volatile unipolar resistive switching devices; however, bidirectional select devices (or two-way switch) need to be developed for bipolar resistive switching devices. Here we report on a fully stackable switching device that solves several problems including current density, temperature stability, cycling endurance and cycle distribution. We demonstrate that the threshold switching device based on As-Ge-Te-Si material significantly improves cycling endurance performance by reactive nitrogen deposition and nitrogen plasma hardening. Formation of the thin Si₃N₄ glass layer by the plasma treatment retards tellurium diffusion during cycling. Scalability of threshold switching devices is measured down to 30 nm scale with extremely fast switching speed of ~2 ns.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Lee MJ,Lee D,Cho SH,Hur JH,Lee SM,Seo DH,Kim DS,Yang MS,Lee S,Hwang E,Uddin MR,Kim H,Chung UI,Park Y,Yoo IKdoi
10.1038/ncomms3629subject
Has Abstractpub_date
2013-01-01 00:00:00pages
2629issn
2041-1723pii
ncomms3629journal_volume
4pub_type
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