First-principles study of magnetic properties in V-doped ZnO

Qian Wang, Qiang Sun, Puru Jena, Zheng Hu, R. Note, Y. Kawazoe

研究成果: Article査読

43 被引用数 (Scopus)

抄録

A comprehensive theoretical study of electronic and magnetic properties of V-doped ZnO in bulk as well as (11 2- 0) thin films has been performed using density functional theory. Vanadium atoms substituted at Zn sites show very little selectivity of site occupancy. More importantly, different geometries with ferromagnetic, ferrimagnetic, and antiferromagnetic configurations are found to be energetically nearly degenerate both in Zn1-x Vx O bulk and subsurface layers of the thin film. On the other hand, V atoms couple ferromagnetically when they occupy surface sites of the thin film. The diverse magnetic behaviors in V-doped ZnO account for the many reported conflicting experimental results.

本文言語English
論文番号063116
ジャーナルApplied Physics Letters
91
6
DOI
出版ステータスPublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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