[16p-301-1~10] The role of functional oxides in the next-generation neuromorphic hardware

[16p-301-10] Bio-inspired electronics and their material development
– Signal transmittance and information processing using noise-

〇Teruo Kanki¹, Hidekazu Tanaka¹ (1.Osaka Univ.)

Keywords:Functional Oxides, Stochastic resonance, Biomimetics

In this presentation I would like to propose and create a new concept oxide device mimicking neurotransmission of bio-systems by using VO₂
Biological systems detect weak signals in noisy environments. Surprisingly, the detection ability sometimes enhances by the addition of noise. The response or signal transfer of a nonlinear system such as a sensory neuron is optimized by the presence of a particular level of noise, which is known as stochastic resonance (SR).SR phenomenon has been seen in a wide variety of biological systems from complex sense organs to simplest biological units in ion channels, and plays a crucial important role for signal transduction in neuronal systems.
We expect realization of new signal transduction devices using the SR principle and exotic features of oxide materials. In this time, we succeeded in enhancement of a detection ability of weak signals by the addition of noise using huge nonlinear response of VO₂. This achievement is for the first time in solid state electronic materials.