Interface effects on perpendicular magnetic anisotropy for molecular-capped cobalt ultrathin films

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13 Citations (Scopus)

Abstract

The perpendicular magnetic anisotropy (PMA) of cobalt (0.5-1.8 nm) films capped separately by pentacene (Pc), fullerene (C60), and 8-hydroxyquinoline-aluminum (Alq3) are investigated. For all three series, the thickness of Co is around 0.7 nm for maximum out-of-plane coercivity. It is found that the coercivity of C60-capped films is nearly equal to that for Alq3-capped samples, although both are smaller than for Pc-capped films. The different interface effects of Co/molecules are discussed to explain this observation. This work highlights the PMA of ferromagnetic metal, which can be markedly infected depending on the nature of organic molecule.

Original languageEnglish
Article number162509
JournalApplied Physics Letters
Volume99
Issue number16
DOIs
Publication statusPublished - 2011 Oct 17

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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