Computational Study of Spin-Torque Oscillator Interactions for Non-Boolean Computing Applications

Author

Csaba, Gyorgy ; Porod, Wolfgang

Author_Institution

Dept. Electr. Eng., Univ. of Notre Dame, Notre Dame, IN, USA

Volume

49

Issue

7

fYear

2013

fDate

Jul-13

Firstpage

4447

Lastpage

4451

Abstract

We present a bottom-up approach for building non-Boolean signal processing devices from coupled spin-torque oscillators (STOs). We use micromagnetic simulations to study frequency-locking properties of electrically connected out-of plane magnetized STOs. After developing and verifying compact models for interacting STOs, we show that the frequency locking of STOs exhibits associative properties. Coupled STO networks therefore may be used as building blocks of non-Boolean pattern matching circuitry.

Keywords

Boolean functions; magnetoelectronics; micromagnetics; neural nets; pattern matching; signal processing; associative properties; bottom-up approach; compact models; coupled STO networks; frequency locking; frequency-locking properties; micromagnetic simulations; nonBoolean computing applications; nonBoolean pattern matching circuitry; nonBoolean signal processing devices coupled spin-torque oscillators; out-of plane magnetized STO; spin-torque oscillator interactions; Computational modeling; Couplings; Frequency synchronization; Integrated circuit interconnections; Neural networks; Oscillators; Synchronization; Magnetic computing devices; micromagnetic modeling; oscillator synchronization; oscillatory neural networks; spin torque oscillators;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2244202

Filename

6559310