Binary data coding with domain wall for spin wave based logic devices

K. Nagai, Y. Cao, T. Tanaka, K. Matsuyama

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An application of the domain wall (DW) to a data coding scheme in spin wave (SW) based logic devices is numerically investigated with micromagnetic simulations. Ferromagnetic nanowires with the perpendicular magnetization are assumed as self-biasing SW guides. The inductive output voltage for the superposed spin wave packets, emitted with the pulsed microwave currents, are manipulated with the SW phase shift caused by the interaction with the DW. The binary logic inputs are coded with the existence (1) or absence (0) of the DW at the pinning sites defined by local modulation of the perpendicular anisotropy in ferromagnetic nanowires. The exclusive-or (EXOR) logic operation is successfully demonstrated with an order of different output signal level for the logic input of 00 (11) and 01(10), encoded by DWs in a nanowire with lateral dimension of 100 × 100 × 2560 nm 3.

Original languageEnglish
Article number07D130
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
Publication statusPublished - Apr 1 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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