Roles of oxygen vacancy on ferromagnetism in Ni doped In2O 3: A hybrid functional study

V. Wang, C. Y. You, H. P. He, D. M. Ma, H. Mizuseki, Y. Kawazoe

研究成果: Article査読

4 被引用数 (Scopus)

抄録

The roles of oxygen vacancies on the electronic and magnetic properties of Ni doped In2O3 have been studied by first-principles calculations based on hybrid functional theory. Our results predict that the Ni-doped In2O3 system displays a ferromagnetic semiconducting character. However, the presence of oxygen vacancies results in antiferromagnetic coupling between the neighboring Ni pair bridged by an oxygen vacancy. The antiferromagnetic coupling is found to arise from the predominant role of superexchange due to the strong Ni 3d-O 2p hybridization. Consequently, the oxygen vacancies play a key role in the lower saturation magnetization of Ni:In2O3 polycrystalline sample, as observed in experiments.

本文言語English
ページ(範囲)55-60
ページ数6
ジャーナルJournal of Magnetism and Magnetic Materials
348
DOI
出版ステータスPublished - 2013

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

フィンガープリント 「Roles of oxygen vacancy on ferromagnetism in Ni doped In<sub>2</sub>O <sub>3</sub>: A hybrid functional study」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル