Paving Spin-Wave Fibers in Magnonic Nanocircuits Using Spin-Orbit Torque

Xiangjun Xing, Philip W.T. Pong, J. Åkerman, Yan Zhou

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Recent studies reveal that domain walls in magnetic nanostructures can serve as compact, energy-efficient spin-wave waveguides for building magnonic devices that are considered promising candidates for overcoming the challenges and bottlenecks of today's CMOS technologies. However, imprinting long strip-domain walls into magnetic nanowires remains a challenge, especially in bent geometries. Here, through micromagnetic simulations, we present a method for writing strip-domain walls into bent magnetic nanowires using spin-orbit torque. We employ Y-shaped magnetic nanostructures as well as an S-shaped magnetic nanowire to demonstrate the injection process. In addition, we verify that the Y-shaped nanostructures that incorporate strip-domain walls can function as superb spin-wave multiplexers and that spin-wave propagation along each conduit can be controllably manipulated. This spin-wave multiplexer based on strip-domain walls is expected to become a key signal-processing component in magnon spintronics.

Original languageEnglish (US)
Article number054016
JournalPhysical Review Applied
Issue number5
StatePublished - May 24 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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