Trade-off between number of conductance states and variability of conductance change in Pr0.7Ca0.3MnO3-based synapse device
SCIE
SCOPUS
- Title
- Trade-off between number of conductance states and variability of conductance change in Pr0.7Ca0.3MnO3-based synapse device
- Authors
- Lee, D; Moon, K; Park, J; Park, S; Hwang, H
- Date Issued
- 2015-03-16
- Publisher
- AMER INST PHYSICS
- Abstract
- The characteristics of Pr0.7Ca0.3MnO3 (PCMO)-based resistive change memory were evaluated as a synapse device for a emerging computing system inspired by a biological brain. The evaluated samples structured with various reactive top electrodes exhibited a dependence on the metal-oxide free energy. More conductance states which can improve the performance of the brain-inspired computing system were achieved in a sample having a low metal-oxide free energy. During the increase and decrease in the conductance, the low metal-oxide free energy also resulted in an asymmetric conductance change leading to degradation in the computational accuracy of the brain-inspired computing system. The results demonstrated a trade-off between the number of conductance states and the variation in the conductance change in the PCMO-based synapse device. (C) 2015 AIP Publishing LLC.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/13161
- DOI
- 10.1063/1.4915924
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- APPLIED PHYSICS LETTERS, vol. 106, no. 11, 2015-03-16
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