Spin wave based parallel logic operations for binary data coded with domain walls

Y. Urazuka, S. Oyabu, H. Chen, B. Peng, H. Otsuki, Terumitsu Tanaka, Kimihide Matsuyama

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We numerically investigate the feasibility of spin wave (SW) based parallel logic operations, where the phase of SW packet (SWP) is exploited as a state variable and the phase shift caused by the interaction with domain wall (DW) is utilized as a logic inversion functionality. A designed functional element consists of parallel ferromagnetic nanowires (6nm-thick, 36nm-width, 5120nm-length, and 200nm separation) with the perpendicular magnetization and sub-μm scale overlaid conductors. The logic outputs for binary data, coded with the existence ("1") or absence ("0") of the DW, are inductively read out from interferometric aspect of the superposed SWPs, one of them propagating through the stored data area. A practical exclusive-or operation, based on 2π periodicity in the phase logic, is demonstrated for the individual nanowire with an order of different output voltage V out, depending on the logic output for the stored data. The inductive output from the two nanowires exhibits well defined three different signal levels, corresponding to the information distance (Hamming distance) between 2-bit data stored in the multiple nanowires.

Original languageEnglish
Article number17D505
JournalJournal of Applied Physics
Volume115
Issue number17
DOIs
Publication statusPublished - May 7 2014

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binary data
magnons
logic
domain wall
nanowires
output
wave packets
periodic variations
phase shift
conductors
inversions
magnetization
electric potential
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Spin wave based parallel logic operations for binary data coded with domain walls. / Urazuka, Y.; Oyabu, S.; Chen, H.; Peng, B.; Otsuki, H.; Tanaka, Terumitsu; Matsuyama, Kimihide.

In: Journal of Applied Physics, Vol. 115, No. 17, 17D505, 07.05.2014.

Research output: Contribution to journalArticle

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