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Title: Neural coding using telegraphic switching of magnetic tunnel junction

Abstract

In this work, we present a synaptic transmission representing neural coding with spike trains by using a magnetic tunnel junction (MTJ). Telegraphic switching generates an artificial neural signal with both the applied magnetic field and the spin-transfer torque that act as conflicting inputs for modulating the number of spikes in spike trains. The spiking probability is observed to be weighted with modulation between 27.6% and 99.8% by varying the amplitude of the voltage input or the external magnetic field. With a combination of the reverse coding scheme and the synaptic characteristic of MTJ, an artificial function for the synaptic transmission is achieved.

Authors:
; ; ;  [1]
  1. Department of Electronic Engineering, Hanyang University, Seoul 133-791 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22410099
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRIC POTENTIAL; MAGNETIC FIELDS; MODULATION; SPIN; SUPERCONDUCTING JUNCTIONS; TORQUE; TRANSMISSION; TUNNEL EFFECT

Citation Formats

Suh, Dong Ik, Bae, Gi Yoon, Oh, Heong Sik, and Park, Wanjun, E-mail: wanjun@hanyang.ac.kr. Neural coding using telegraphic switching of magnetic tunnel junction. United States: N. p., 2015. Web. doi:10.1063/1.4914071.
Suh, Dong Ik, Bae, Gi Yoon, Oh, Heong Sik, & Park, Wanjun, E-mail: wanjun@hanyang.ac.kr. Neural coding using telegraphic switching of magnetic tunnel junction. United States. doi:10.1063/1.4914071.
Suh, Dong Ik, Bae, Gi Yoon, Oh, Heong Sik, and Park, Wanjun, E-mail: wanjun@hanyang.ac.kr. Thu . "Neural coding using telegraphic switching of magnetic tunnel junction". United States. doi:10.1063/1.4914071.
@article{osti_22410099,
title = {Neural coding using telegraphic switching of magnetic tunnel junction},
author = {Suh, Dong Ik and Bae, Gi Yoon and Oh, Heong Sik and Park, Wanjun, E-mail: wanjun@hanyang.ac.kr},
abstractNote = {In this work, we present a synaptic transmission representing neural coding with spike trains by using a magnetic tunnel junction (MTJ). Telegraphic switching generates an artificial neural signal with both the applied magnetic field and the spin-transfer torque that act as conflicting inputs for modulating the number of spikes in spike trains. The spiking probability is observed to be weighted with modulation between 27.6% and 99.8% by varying the amplitude of the voltage input or the external magnetic field. With a combination of the reverse coding scheme and the synaptic characteristic of MTJ, an artificial function for the synaptic transmission is achieved.},
doi = {10.1063/1.4914071},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}