Magnetic Pattern Recognition Using Injection-Locked Spin-Torque Nano-Oscillators

Karthik Yogendra, Deliang Fan, Byunghoo Jung, Kaushik Roy

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

In this paper, we propose an efficient methodology for detecting magnetic field and thereby magnetic patterns using an injection-locked spin-torque nano-oscillator (STNO) array. We demonstrate the methodology with the implementation of a physical STNO model based on the Landau-Lifshitz-Gilbert-Slonczewski equation, which is benchmarked with experimental data. Based on our simulations, we provide an analysis of how the STNO, as a field-controlled oscillator, together with injection locking, can be used to sense magnetic fields and thereby magnetic patterns. The output can be sensed using simple CMOS peripheral circuitry.

Original languageEnglish (US)
Article number7405294
Pages (from-to)1674-1680
Number of pages7
JournalIEEE Transactions on Electron Devices
Volume63
Issue number4
DOIs
StatePublished - Apr 2016
Externally publishedYes

Keywords

  • Injection locking
  • magnetic pattern recognition
  • spin-torque nano-oscillators (STNOs)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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