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Title: Reversible magnetic logic gates based on spin wave interference

Abstract

We propose and develop reversible magnetic logic gates based on spin wave interference. The gates consist of passive elements including spin waveguides, cross-junctions, and phase shifters. Logic 0 and 1 are encoded in the phase of the propagating spin wave (0 or $π$). There are different possible input-output trajectories for the propagating spin waves, where some of the trajectories contain phase shifters and others do not. In each case, the particular input-output trajectory and the resultant output phase depend on the input phase combination. The redirection takes place in the cross junctions. Two waves coming to a junction in-phase propagate through the junction without reflection. In contrast, two waves coming to a junction out-of-phase are completely reflected back. The process of redirection is illustrated by numerical modeling of a nanometer-scale junction comprising two chains of spins, which operates at zero temperature. We also present experimental data on spin wave redirection in a micrometer-size cross junction made of Y 3Fe 2(FeO 4) 3 operating at room temperature. Our results demonstrate a prominent spin wave redirection, where the ratio of the transmitted power between the in-phase and out-of-phase cases exceeds 45 dB at room temperature. Based on these experimental data, we estimate themore » energy per operation in spin wave reversible logic circuits. The proposed reversible gates may provide a route to magnetic logic circuitry with power dissipation less than $kT$ per operation.« less

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [1]
  1. Univ. of California, Riverside, CA (United States). Dept. of Electrical and Computer Engineering
  2. Russian Academy of Sciences (RAS), Moscow (Russian Federation)
  3. Russian Academy of Sciences (RAS), Moscow (Russian Federation); Saratov State Univ. (Russian Federation)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1566376
Alternate Identifier(s):
OSTI ID: 1432418
Grant/Contract Number:  
SC0012670
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 123; Journal Issue: 14; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; phonons; thermal conductivity; thermoelectric; spin dynamics; spintronics

Citation Formats

Balynskiy, Michael, Chiang, Howard, Gutierrez, David, Kozhevnikov, Alexander, Filimonov, Yuriy, and Khitun, Alexander. Reversible magnetic logic gates based on spin wave interference. United States: N. p., 2018. Web. doi:10.1063/1.5011772.
Balynskiy, Michael, Chiang, Howard, Gutierrez, David, Kozhevnikov, Alexander, Filimonov, Yuriy, & Khitun, Alexander. Reversible magnetic logic gates based on spin wave interference. United States. doi:10.1063/1.5011772.
Balynskiy, Michael, Chiang, Howard, Gutierrez, David, Kozhevnikov, Alexander, Filimonov, Yuriy, and Khitun, Alexander. Sat . "Reversible magnetic logic gates based on spin wave interference". United States. doi:10.1063/1.5011772. https://www.osti.gov/servlets/purl/1566376.
@article{osti_1566376,
title = {Reversible magnetic logic gates based on spin wave interference},
author = {Balynskiy, Michael and Chiang, Howard and Gutierrez, David and Kozhevnikov, Alexander and Filimonov, Yuriy and Khitun, Alexander},
abstractNote = {We propose and develop reversible magnetic logic gates based on spin wave interference. The gates consist of passive elements including spin waveguides, cross-junctions, and phase shifters. Logic 0 and 1 are encoded in the phase of the propagating spin wave (0 or $π$). There are different possible input-output trajectories for the propagating spin waves, where some of the trajectories contain phase shifters and others do not. In each case, the particular input-output trajectory and the resultant output phase depend on the input phase combination. The redirection takes place in the cross junctions. Two waves coming to a junction in-phase propagate through the junction without reflection. In contrast, two waves coming to a junction out-of-phase are completely reflected back. The process of redirection is illustrated by numerical modeling of a nanometer-scale junction comprising two chains of spins, which operates at zero temperature. We also present experimental data on spin wave redirection in a micrometer-size cross junction made of Y3Fe2(FeO4)3 operating at room temperature. Our results demonstrate a prominent spin wave redirection, where the ratio of the transmitted power between the in-phase and out-of-phase cases exceeds 45 dB at room temperature. Based on these experimental data, we estimate the energy per operation in spin wave reversible logic circuits. The proposed reversible gates may provide a route to magnetic logic circuitry with power dissipation less than $kT$ per operation.},
doi = {10.1063/1.5011772},
journal = {Journal of Applied Physics},
number = 14,
volume = 123,
place = {United States},
year = {2018},
month = {4}
}

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