Improved endurance of resistive switching TiO2 thin film by hourglass shaped Magnéli filaments

Gun Hwan Kim; Jong Ho Lee; Jun Yeong Seok; Seul Ji Song; Jung Ho Yoon; Kyung Jean Yoon; Min Hwan Lee; Kyung Min Kim; Hyung Dong Lee; Seung Wook Ryu; Tae Joo Park; Cheol Seong Hwang

doi:10.1063/1.3600784

Improved endurance of resistive switching TiO₂ thin film by hourglass shaped Magnéli filaments

Gun Hwan Kim, Jong Ho Lee, Jun Yeong Seok, Seul Ji Song, Jung Ho Yoon, Kyung Jean Yoon, Min Hwan Lee, Kyung Min Kim, Hyung Dong Lee, Seung Wook Ryu, Tae Joo Park, Cheol Seong Hwang

Research output: Contribution to journal › Article › peer-review

73 Scopus citations

Abstract

A modified biasing scheme was adopted to improve the electrical endurance characteristics of conducting filamentary resistive switching (RS) in a Pt/TiO₂/Pt RS cell. The modified bias scheme included the application of bias voltages with alternating polarity, even though RS proceeds in non-polar mode, which results in the stable distribution of each resistance states as well as improved endurance. This was attributed to the minimized consumption of oxygen ions in the TiO₂ film, which can be induced by the formation of hourglass-shaped conducting filament (HSCF). The presence of a HSCF was confirmed by high-resolution transmission electron microscopy.

Original language	English
Article number	262901
Journal	Applied Physics Letters
Volume	98
Issue number	26
DOIs	https://doi.org/10.1063/1.3600784
State	Published - 27 Jun 2011
Externally published	Yes

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title = "Improved endurance of resistive switching TiO2 thin film by hourglass shaped Magn{\'e}li filaments",

abstract = "A modified biasing scheme was adopted to improve the electrical endurance characteristics of conducting filamentary resistive switching (RS) in a Pt/TiO2/Pt RS cell. The modified bias scheme included the application of bias voltages with alternating polarity, even though RS proceeds in non-polar mode, which results in the stable distribution of each resistance states as well as improved endurance. This was attributed to the minimized consumption of oxygen ions in the TiO2 film, which can be induced by the formation of hourglass-shaped conducting filament (HSCF). The presence of a HSCF was confirmed by high-resolution transmission electron microscopy.",

author = "Kim, \{Gun Hwan\} and \{Ho Lee\}, Jong and \{Yeong Seok\}, Jun and \{Ji Song\}, Seul and \{Ho Yoon\}, Jung and \{Jean Yoon\}, Kyung and \{Hwan Lee\}, Min and \{Min Kim\}, Kyung and \{Dong Lee\}, Hyung and \{Wook Ryu\}, Seung and \{Joo Park\}, Tae and \{Seong Hwang\}, Cheol",

year = "2011",

month = jun,

day = "27",

doi = "10.1063/1.3600784",

language = "English",

volume = "98",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Improved endurance of resistive switching TiO2 thin film by hourglass shaped Magnéli filaments

AU - Kim, Gun Hwan

AU - Ho Lee, Jong

AU - Yeong Seok, Jun

AU - Ji Song, Seul

AU - Ho Yoon, Jung

AU - Jean Yoon, Kyung

AU - Hwan Lee, Min

AU - Min Kim, Kyung

AU - Dong Lee, Hyung

AU - Wook Ryu, Seung

AU - Joo Park, Tae

AU - Seong Hwang, Cheol

PY - 2011/6/27

Y1 - 2011/6/27

N2 - A modified biasing scheme was adopted to improve the electrical endurance characteristics of conducting filamentary resistive switching (RS) in a Pt/TiO2/Pt RS cell. The modified bias scheme included the application of bias voltages with alternating polarity, even though RS proceeds in non-polar mode, which results in the stable distribution of each resistance states as well as improved endurance. This was attributed to the minimized consumption of oxygen ions in the TiO2 film, which can be induced by the formation of hourglass-shaped conducting filament (HSCF). The presence of a HSCF was confirmed by high-resolution transmission electron microscopy.

AB - A modified biasing scheme was adopted to improve the electrical endurance characteristics of conducting filamentary resistive switching (RS) in a Pt/TiO2/Pt RS cell. The modified bias scheme included the application of bias voltages with alternating polarity, even though RS proceeds in non-polar mode, which results in the stable distribution of each resistance states as well as improved endurance. This was attributed to the minimized consumption of oxygen ions in the TiO2 film, which can be induced by the formation of hourglass-shaped conducting filament (HSCF). The presence of a HSCF was confirmed by high-resolution transmission electron microscopy.

UR - https://www.scopus.com/pages/publications/79960091416

U2 - 10.1063/1.3600784

DO - 10.1063/1.3600784

M3 - Article

AN - SCOPUS:79960091416

SN - 0003-6951

VL - 98

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

M1 - 262901

ER -

Improved endurance of resistive switching TiO₂ thin film by hourglass shaped Magnéli filaments

Abstract

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