Room temperature ferromagnetism in carbon-implanted ZnO

Details Room temperature ferromagnetism in carbon-implanted ZnO Room temperature ferromagnetism in carbon-implanted ZnO

2008-11-21

arxiv.org/abs/0811.3487v1

Appl. Phys. Lett. 93, 232507 (2008)

Physics

Condensed Matter

Materials Science

13 pages, 3 figs, accepted for publication at Appl. Phys. Lett

Scientific paper

10.1063/1.3048076

Unexpected ferromagnetism has been observed in carbon doped ZnO films grown by pulsed laser deposition [Phys. Rev. Lett. 99, 127201 (2007)]. In this letter, we introduce carbon into ZnO films by ion implantation. Room temperature ferromagnetism has been observed. Our analysis demonstrates that (1) C-doped ferromagnetic ZnO can be achieved by an alternative method, i.e. ion implantation, and (2) the chemical involvement of carbon in the ferromagnetism is indirectly proven.

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