Slant-perpendicular magnetic anisotropy axis induced by steps in 4°-miscut Si(111)/Cu/Au/Co/Au system

Chun Yeol You, Sukmock Lee, Sungkyun Park, Charles M Falco

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Abstract

We find that the easy axis orientation of the Co layer in the 4°-miscut Si(111)/Cu/Au(2ML)/Co(5ML)/Au system is neither perpendicular nor in plane. Analysis of magneto-optical Kerr effect and Brillouin light scattering measurements for various angles of in-plane applied magnetic field with respect to the miscut direction reveals that easy axis orientation is slightly slanted from the film normal toward the direction of the miscut. Since there is no such slanted magnetic anisotropy axis in films grown on a nonmiscut Si substrate, and since the direction of incline is strongly correlated with the step direction, we conclude that the slanted magnetic anisotropy axis is induced by the steps in 4°-miscut Si(111) substrate.

Original languageEnglish (US)
Article number134402
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number13
DOIs
Publication statusPublished - Apr 2004

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ASJC Scopus subject areas

  • Condensed Matter Physics

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