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

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

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number063116
JournalApplied Physics Letters
Volume91
Issue number6
DOIs
Publication statusPublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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