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자연과학대학
물리학전공
Journal papers
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Effects of heat dissipation on unipolar resistance switching in PtNiOPt capacitors
Title
Effects of heat dissipation on unipolar resistance switching in PtNiOPt capacitors
Authors
Chang S.H.
;
Chae S.C.
;
Lee S.B.
;
Liu C.
;
Noh T.W.
;
Lee J.S.
;
Kahng B.
;
Jang J.H.
;
Kim M.Y.
;
Kim D.-W.
;
Jung C.U.
Ewha Authors
김동욱
SCOPUS Author ID
김동욱
Issue Date
2008
Journal Title
Applied Physics Letters
ISSN
0003-6951
Citation
Applied Physics Letters vol. 92, no. 18
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
Abstract
We fabricated PtNiOPt capacitor structures with various bottom electrode thicknesses tBE and investigated their resistance switching behaviors. The capacitors with tBE 50 nm exhibited typical unipolar resistance memory switching, while those with tBE ≤30 nm showed threshold switching. This interesting phenomenon can be explained in terms of the temperature-dependent stability of conducting filaments. In particular, the thinner tBE makes dissipation of Joule heat less efficient, so the filaments will be at a higher temperature and become less stable. This study demonstrates the importance of heat dissipation in resistance random access memory. © 2008 American Institute of Physics.
DOI
10.1063/1.2924304
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