Ferromagnetic properties in co-substituted titania nanosheets

Minoru Osada, Yasuo Ebina, Kazunori Takada, Takayoshi Sasaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Two-dimensional (2D) Ti1-xCoxO2nanosheet, a recently discovered ferromagnic nanomaterial, has been investigated by magnetic and magneto-optical measurements. The multilayer films of Ti 0.8Co0.2O2 nanosheets exhibit room-temperature ferromagnetism with magnetic moment of 1.4 μB/Co. We also observe robust magnetic circular dichroism near the absorption edge at 4 eV, indicating a strong spin polarization in this 2D system. The first-principles study of Ti1-xCoxO2 nanosheet characterizes the ferromagnetic state with a spin-orbit-induced anisotropy.

Original languageEnglish
Pages (from-to)119-122
Number of pages4
JournalKey Engineering Materials
Volume388
DOIs
Publication statusPublished - 2009
Externally publishedYes

Keywords

  • Ferromagnetic
  • First-principles calculation
  • Magneto-optical effect
  • Titania nanosheet

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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