Spin-Wave Diode

Jin Lan, Weichao Yu, Ruqian Wu, Jiang Xiao

Research output: Contribution to journalArticlepeer-review

110 Citations (Scopus)


A diode, a device allowing unidirectional signal transmission, is a fundamental element of logic structures, and it lies at the heart of modern information systems. The spin wave or magnon, representing a collective quasiparticle excitation of the magnetic order in magnetic materials, is a promising candidate for an information carrier for the next-generation energy-saving technologies. Here, we propose a scalable and reprogrammable pure spin-wave logic hardware architecture using domain walls and surface anisotropy stripes as waveguides on a single magnetic wafer. We demonstrate theoretically the design principle of the simplest logic component, a spin-wave diode, utilizing the chiral bound states in a magnetic domain wall with a Dzyaloshinskii-Moriya interaction, and confirm its performance through micromagnetic simulations. Our findings open a new vista for realizing different types of pure spin-wave logic components and finally achieving an energy-efficient and hardware-reprogrammable spin-wave computer.

Original languageEnglish
Article number041049
JournalPhysical Review X
Issue number4
Publication statusPublished - 2015
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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