An artificial heterosynaptic device and its regulation method based on two-dimensional ferroelectric materials

Abstract

The invention discloses a two-dimensional ferroelectric material-based artificial heterogeneous synaptic device and a control method, and proposes for the first time that a two-dimensional ferroelectric material with in-plane and out-of-plane polarization coupling is used as a functional layer material to prepare a three-terminal artificial synapse. The contact device uses the intrinsic polarization coupling characteristics of the material to realize the electrical control of the third terminal. The added control terminal can promote or inhibit the weight control ability of the artificial synapse device, so that the artificial synapse device can complete more complex bionic functions; the third terminal uses electric field for regulation, and the power consumption of regulation is extremely low; the device structure is easy to integrate ;Each device can be adjusted independently without interfering with each other.

Description

technical field [0001] The invention belongs to the technical field of brain-inspired computing, and in particular relates to an artificial heterosynaptic device based on a two-dimensional ferroelectric material and a control method. Background technique [0002] In the traditional von Neumann computing architecture, the memory and the arithmetic unit are separated, and a large amount of data is transported back and forth on the bus, which limits the computing speed and increases energy consumption. In order to break through the von Neumann bottleneck, some new computing paradigms have been proposed, including brain-like computing and in-memory computing. In the human brain, a large number of synapses and neurons store and process information in parallel with high efficiency and low power consumption. Brain-inspired computing is a very important step in building a brain-inspired computer inspired by the human brain. It simulates the synapses and neurons in the human brain f...

AI Technical Summary

Problems solved by technology

However, it should be noted that most of the research is limited to the realization of homologous synaptic plasticity, which means that the artificial synapse is a two-terminal device, and the adjustment and detection of synaptic weights are implemented on the same pair of ports.

Images