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Magnon spintronics

Magnon spintronics Magnon spintronics is the field of spintronics concerned with structures, devices and circuits that use spin currents carried by magnons. Magnons are the quanta of spin waves: the dynamic eigen-excitations of a magnetically ordered body. Analogous to electric currents, magnon-based currents can be used to carry, transport and process information. The use of magnons allows the implementation of novel wave-based computing technologies free from the drawbacks inherent to modern electronics, such as dissipation of energy due to Ohmic losses. Logic circuits based on wave interference and nonlinear wave interaction can be designed with much smaller footprints compared with conventional electron-based logic circuits. In this review, after an introduction into the basic properties of magnons and their handling, we discuss the inter-conversion between magnon currents and electron-carried spin and charge currents; and concepts and experimental studies of magnon-based computing circuits. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nature Physics Springer Journals

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References (141)

Publisher
Springer Journals
Copyright
Copyright © 2014 by Nature Publishing Group
Subject
Physics; Physics, general; Theoretical, Mathematical and Computational Physics; Classical and Continuum Physics; Atomic, Molecular, Optical and Plasma Physics; Condensed Matter Physics; Complex Systems
ISSN
1745-2473
eISSN
1745-2481
DOI
10.1038/nphys3347
Publisher site
See Article on Publisher Site

Abstract

Magnon spintronics is the field of spintronics concerned with structures, devices and circuits that use spin currents carried by magnons. Magnons are the quanta of spin waves: the dynamic eigen-excitations of a magnetically ordered body. Analogous to electric currents, magnon-based currents can be used to carry, transport and process information. The use of magnons allows the implementation of novel wave-based computing technologies free from the drawbacks inherent to modern electronics, such as dissipation of energy due to Ohmic losses. Logic circuits based on wave interference and nonlinear wave interaction can be designed with much smaller footprints compared with conventional electron-based logic circuits. In this review, after an introduction into the basic properties of magnons and their handling, we discuss the inter-conversion between magnon currents and electron-carried spin and charge currents; and concepts and experimental studies of magnon-based computing circuits.

Journal

Nature PhysicsSpringer Journals

Published: Jun 2, 2015

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