MAGNETORESISTIVE ELEMENT, LOGIC GATE, LOGICAL GATE OPERATION METHOD

摘要

A logic gate (40) includes: a magnetoresistive element (1), a magnetization state control unit (50), and an output unit (60).  The magnetoresistive element (1) has N (N is an integer not smaller than 3) magnetic layers (10) and N-1 non-magnetic layers which are alternately layered.  The magnetoresistive element (1) has a resistance value (R) which is changed by the magnetization state of the N magnetic layers (10).  The magnetization state control unit (50) sets respective magnetization states of the N magnetic layers (10) in accordance with N types of input data.  The output unit (60) outputs output data which is changed in accordance with the resistance value (R) of the magnetoresistive element (1).