Neural coding using telegraphic switching of magnetic tunnel junction

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[1] Suh, Dong Ik
[2] Bae, Gi Yoon
[3] Oh, Heong Sik
[4] Park, Wanjun
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Park, Wanjun (wanjun@hanyang.ac.kr) | 1600年 / American Institute of Physics Inc.卷 / 117期
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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. © 2015 AIP Publishing LLC;
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