Presentation 2014-12-12
Study of driving forces that cause resistive switching of binary transition metal oxide memory
Ryosuke Koishi, Takumi Moriyama, Kouhei Kimura, Kouki Kawano, Hidetoshi Miyashita, Sang-Seok LEE, Satoru Kishida, Kentaro Kinoshita,
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Abstract(in English) It is widely received that resistive switching of resistive random access memory (ReRAM) is caused by formation and rupture of conductive filament consisting of oxygen vacancies, V_os. However, driving forces that migrate oxygen vacancies have been not elucidated yet. In this study, we tried to separate driving forces that cause V_o diffusion, concentration gradient (concentration diffusion) and temperature gradient (thermodiffusion), by generating various temperature distribution around the filament by injecting voltage pulses with various wave forms. As a result, it was shown that concentration diffusion and thermodiffusion are always competing each other in ReRAM, and magnitude relation of concentration diffusion and thermodiffusion decides which reset occurs or set occurs is decided by the magnitude relation of concentration diffusion and thermodiffusion.
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Keyword(in English) Resistive random access memory / ReRAM / concentration diffusion / thermodiffusion
Paper # EID2014-37,SDM2014-132
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Committee EID
Conference Date 2014/12/5(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
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Title (in English) Study of driving forces that cause resistive switching of binary transition metal oxide memory
Sub Title (in English)
Keyword(1) Resistive random access memory
Keyword(2) ReRAM
Keyword(3) concentration diffusion
Keyword(4) thermodiffusion
1st Author's Name Ryosuke Koishi
1st Author's Affiliation Ibttori University()
2nd Author's Name Takumi Moriyama
2nd Author's Affiliation Ibttori University:Tottori Integrated Frontier Research Center (TiFREC)
3rd Author's Name Kouhei Kimura
3rd Author's Affiliation Ibttori University
4th Author's Name Kouki Kawano
4th Author's Affiliation Ibttori University
5th Author's Name Hidetoshi Miyashita
5th Author's Affiliation Ibttori University:Tottori Integrated Frontier Research Center (TiFREC)
6th Author's Name Sang-Seok LEE
6th Author's Affiliation Ibttori University:Tottori Integrated Frontier Research Center (TiFREC)
7th Author's Name Satoru Kishida
7th Author's Affiliation Ibttori University:Tottori Integrated Frontier Research Center (TiFREC)
8th Author's Name Kentaro Kinoshita
8th Author's Affiliation Ibttori University:Tottori Integrated Frontier Research Center (TiFREC)
Date 2014-12-12
Paper # EID2014-37,SDM2014-132
Volume (vol) vol.114
Number (no) 359
Page pp.pp.-
#Pages 4
Date of Issue