Surface roughness and magnetic properties of co ferromagnetic thin films on polyethylene naphthalate organic substrates

Hideo Kaiju, Taro Abe, Kenji Kondo, Akira Ishibashi

Research output: Contribution to journalArticle


We have investigated surface roughnesses and magnetic properties of Co ferromagnetic thin films evaporated on polyethylene naphtalate (PEN) organic substrates. As a result, the surface roughness decreases from 1.3 to 0.55 nm with increasing the Co thickness up to 55 nm, where a two-step smoothing phenomenon can be seen. As for magnetic properties, the coercive force and the squareness of the hysteresis loop show the maximum values at a Co thickness of 5.3 nm. This experimental result can be explained by the competition between the shape magnetic anisotropy and the induced magnetic anisotropy of Co ferromagnetic thin films.

Original languageEnglish
Pages (from-to)187-190
Number of pages4
JournalJournal of the Vacuum Society of Japan
Issue number4
Publication statusPublished - 2012 Aug 15


ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Surfaces and Interfaces
  • Spectroscopy

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