Improved Bipolar Resistive Switching Memory Using W/TaOx/W Structure

2010 ◽  
Vol 159 ◽  
pp. 333-337 ◽  
Author(s):  
Amit Prakash ◽  
Siddheswar Maikap ◽  
H.Y. Lee ◽  
G. Chen ◽  
F. Chen ◽  
...  

Resistive switching memory characteristics of high- TaOx film in a W/TaOx/W structure have been investigated and compared with Al/TaOx/W structure. Amorphous TaOx film with a thickness of 6.8 nm was confirmed by HRTEM image and EDX analysis. The switching in Al/TaOx/W structure is found to be unstable with large variations in set and reset voltages. The memory device in W/TaOx/W structure shows good memory characteristics with a low power of ~500µAx1.6V. The current conduction mechanism is fitted to Ohmic and SCLC in LRS and HRS, respectively. The memory device has shown good endurance characteristics of >5x103 cycles and good data retention with a stable HRS/LRS.

2018 ◽  
Vol 215 (24) ◽  
pp. 1800550 ◽  
Author(s):  
Swati T. Gurme ◽  
Tukaram D. Dongale ◽  
Shripad N. Surwase ◽  
Sujata D. Kumbhar ◽  
Gayatri M. More ◽  
...  

Nanoscale ◽  
2017 ◽  
Vol 9 (40) ◽  
pp. 15314-15322 ◽  
Author(s):  
Se-I Oh ◽  
Janardhanan R. Rani ◽  
Sung-Min Hong ◽  
Jae-Hyung Jang

A solution-processed FeOx–GO hybrid based RRAM device with excellent self-rectifying characteristics (ILRS/IR > 104) is presented.


2014 ◽  
Vol 105 (7) ◽  
pp. 072102 ◽  
Author(s):  
Seung Wook Ryu ◽  
Seongjae Cho ◽  
Joonsuk Park ◽  
Jungsuk Kwac ◽  
Hyeong Joon Kim ◽  
...  

2017 ◽  
Vol 5 (37) ◽  
pp. 9799-9805 ◽  
Author(s):  
Guilin Chen ◽  
Peng Zhang ◽  
Lulu Pan ◽  
Lin Qi ◽  
Fucheng Yu ◽  
...  

A non-volatile resistive switching memory effect was observed in flexible memory device based on SrTiO3 nanosheets and polyvinylpyrrolidone composites.


2014 ◽  
Vol 9 (1) ◽  
pp. 125 ◽  
Author(s):  
Amit Prakash ◽  
Siddheswar Maikap ◽  
Hsien-Chin Chiu ◽  
Ta-Chang Tien ◽  
Chao-Sung Lai

Micromachines ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 905
Author(s):  
Junhyeok Choi ◽  
Sungjun Kim

In this work, the enhanced resistive switching of ZrN-based resistive switching memory is demonstrated by embedding TiO2 layer between Ag top electrode and ZrN switching layer. The Ag/ZrN/n-Si device exhibits unstable resistive switching as a result of the uncontrollable Ag migration. Both unipolar and bipolar resistive switching with high RESET current were observed. Negative-SET behavior in the Ag/ZrN/n-Si device makes set-stuck, causing permanent resistive switching failure. On the other hand, the analogue switching in the Ag/TiO2/ZrN/n-Si device, which could be adopted for the multi-bit data storage applications, is obtained. The gradual switching in Ag/TiO2/ZrN/n-Si device is achieved, possibly due to the suppressed Ag diffusion caused by TiO2 inserting layer. The current–voltage (I–V) switching characteristics of Ag/ZrN/n-Si and Ag/TiO2/ZrN/n-Si devices can be well verified by pulse transient. Finally, we established that the Ag/TiO2/ZrN/n-Si device is suitable for neuromorphic application through a comparison study of conductance update. This paper paves the way for neuromorphic application in nitride-based memristor devices.


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