COMPUTING DEVICE AND COMPUTING METHOD

To provide a physical reservoir computing technology having high storage capacity.SOLUTION: A computing device includes: an input circuit for generating a first voltage signal based on an input signal; a magnetic tunnel junction element for outputting a second voltage signal based on the first voltage signal, the magnetic tunnel junction element having a magnetized pinned layer, a first intermediate layer, a first magnetized free layer, a second intermediate layer, and a second magnetized free layer, the magnetized pinned layer, the first intermediate layer, the first magnetized free layer, the second intermediate layer, and the second magnetized free layer being laminated and joined in this order and electrically connected to the input circuit; and an output circuit which is electrically connected to the magnetic tunnel junction element and generates an output signal indicating a computation result generated so as to indicate information corresponding to the input signal through product-sum operation based on the second voltage signal.SELECTED DRAWING: Figure 3 【課題】高い記憶容量を有する、物理リザバー演算技術を提供する。【解決手段】演算装置は、入力信号に基づく第１電圧信号を生成する入力回路と、第１電圧信号に基づいて第２電圧信号を出力する磁気トンネル接合素子であって、磁化固定層、第１中間層、第１磁化自由層、第２中間層、及び第２磁化自由層を有し、磁化固定層、第１中間層、第１磁化自由層、第２中間層、及び第２磁化自由層がこの順に積層されて接合され、入力回路と電気的に接続された磁気トンネル接合素子と、磁気トンネル接合素子と電気的に接続され、第２電圧信号に基づく積和演算によって、入力信号に対応する情報を示すように生成された演算結果を示す出力信号を生成する出力回路と、を備える。【選択図】図３