An Electronic Analog Integrator Based on Ferromagnetic Materials

Abstract

The invention discloses an electronic analog integrator based on a ferromagnetic material, which belongs to the field of spin electronics and its devices. The integrator includes: a spin current generation layer, a multi-domain free layer, a nonmagnetic layer and a fixed layer; The multi-domain free layer, non-magnetic layer and pinned layer constitute a magnetic tunnel junction, which is located on the upper surface of the spin current generation layer; the two opposite protruding ends of the spin current generation layer are respectively used as the first electrode and the second electrode of the integrator, The upper surface of the fixed layer is used as the third electrode of the integrator; the spin current generation layer is used to generate spin current under the action of input current; the multi-domain free layer is used to generate spin current under the action of spin-orbit torque of spin current The magnetic domain wall moves and changes the magnetization direction, so that the resistance of the electronic analog integrator changes continuously, and there is a definite integral relationship between the continuous change and the input current. The integrator of the present invention has non-volatility and adopts an independent structure, reduces system complexity, has simple circuit structure, and is easy to be integrated on a large scale.

Description

Technical field [0001] The present invention is in the field of spintronics devices and, more particularly, to an electronic analog integrator based ferromagnetic material. Background technique [0002] 21 century, the rapid development of information technology, the Internet seeped into every aspect of our lives, as the physical carrier of information technology, the integrated circuit is undoubtedly a very critical part, the integrated circuit has a very powerful computing capability, basic operations such as addition subtraction, senior Some operations, such as differential calculus, can be implemented in an integrated circuit. Integrator means output signal and the system input signal proportional to the integral value of time an electronic circuit; in a discrete system, the output is input summing each discrete time value; view from the frequency domain, the integrator is a a low pass filter. The integrator is mainly used for waveform conversion, amplification and feedback c...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide an electronic analog integrator based on ferromagnetic materials, aiming to solve the problem of complex circuit structure, complex circuit structure and Large size, not conducive to integration problems

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