Enhanced field-driven domain wall motion in Pt/Co/Pt and Pt/C068B32/Pt strips

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It is now commonly accepted that materials exhibiting high perpendicular magnetic anisotropy are excellent candidates for devices based on current-induced domain-wall (DW) motion. A major hindrance of these materials however, is that they exhibit strong DW pinning. Here we report a significant increase in the field-driven DW velocity in Pt(4 nm)/Co68B32(0.6 nm)/Pt(2 nm) layers patterned into 900 nm wide strips. We compare the DW velocity between Co and Co68B32 films and discuss the observed effects using the morphology of the films investigated by high-resolution transmission electron microscopy.
Original languageEnglish
Article number132502
Pages (from-to)132502-1/3
JournalApplied Physics Letters
Issue number13
Publication statusPublished - 2011


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