期刊
ADVANCED FUNCTIONAL MATERIALS
卷 29, 期 30, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201900155
关键词
associative memory; memristor; neuromorphic computing
类别
资金
- NSFC [61851404, 61874169, 61674087, 61674089, 61674092, 61076115]
- MOST of China [2016YFA0201801]
- Beijing Innovation Center for Future Chips (ICFC)
- Beijing Municipal Science and Technology Project [Z181100003218001]
Associative memory is one of the significant characteristics of the biological brain. However, it has yet to be realized in a large memristor array due to the high requirements on the memristor device. In this work, the multilevel memristor cell is optimized by employing an electro-thermal modulation layer. Memristor devices show both high resistance, cell-to-cell uniformity, and multilevel resistive switching behaviors with good reliability. A Hopfield neural network is experimentally demonstrated on a 1k memristor array that is capable of realizing the associative memory function for emotion image recovery. By using both asynchronous and synchronous refresh schemes, complete emotion images can be recalled from partial information.
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